Divisors of 77440: All 48 Factors

Divisors (Factors) Calculator

Use the calculator above to find all divisors (also called factors) of any positive integer up to 4,782,969. Beyond the divisor list, this tool also shows divisor pairs, the sum and count of divisors, prime factorization, and number properties (prime, perfect square, perfect number).

All Divisors of 77440

The number 77440 has 48 divisors:

1,  2,  4,  5,  8,  10,  11,  16,  20,  22,  32,  40,  44,  55,  64,  80,  88,  110,  121,  128,  160,  176,  220,  242,  320,  352,  440,  484,  605,  640,  704,  880,  968,  1210,  1408,  1760,  1936,  2420,  3520,  3872,  4840,  7040,  7744,  9680,  15488,  19360,  38720,  77440

Divisor Pairs of 77440

Each pair multiplies to 77440:

Number of Divisors

The number 77440 has 48 divisors, written as τ(77440) = 48 in number theory.

Sum of Divisors

σ(77440) = 1 + 2 + 4 + 5 + 8 + 10 + 11 + 16 + 20 + 22 + 32 + 40 + 44 + 55 + 64 + 80 + 88 + 110 + 121 + 128 + 160 + 176 + 220 + 242 + 320 + 352 + 440 + 484 + 605 + 640 + 704 + 880 + 968 + 1210 + 1408 + 1760 + 1936 + 2420 + 3520 + 3872 + 4840 + 7040 + 7744 + 9680 + 15488 + 19360 + 38720 + 77440 = 203490

Prime Factorization of 77440

See the full prime factorization calculator →

Properties of 77440

• 77440 is composite.
• 77440 is not a perfect square.
• Number of divisors: 48.
• Sum of divisors: 203490.

Common Divisors with Another Number?

Looking for the divisors that 77440 shares with another number? Use our Greatest Common Factor (GCF) calculator — it finds all common divisors and the largest one.

Step-by-Step: How to Find the Divisors of 77440

An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √77440 ≈ 278.28. If i divides 77440, then both i and 77440/i are divisors.

1. 1 divides 77440 (77440 ÷ 1 = 77440) → pair (1, 77440)
2. 2 divides 77440 (77440 ÷ 2 = 38720) → pair (2, 38720)
3. 4 divides 77440 (77440 ÷ 4 = 19360) → pair (4, 19360)
4. 5 divides 77440 (77440 ÷ 5 = 15488) → pair (5, 15488)
5. 8 divides 77440 (77440 ÷ 8 = 9680) → pair (8, 9680)
6. 10 divides 77440 (77440 ÷ 10 = 7744) → pair (10, 7744)
7. 11 divides 77440 (77440 ÷ 11 = 7040) → pair (11, 7040)
8. 16 divides 77440 (77440 ÷ 16 = 4840) → pair (16, 4840)
9. 20 divides 77440 (77440 ÷ 20 = 3872) → pair (20, 3872)
10. 22 divides 77440 (77440 ÷ 22 = 3520) → pair (22, 3520)
11. 32 divides 77440 (77440 ÷ 32 = 2420) → pair (32, 2420)
12. 40 divides 77440 (77440 ÷ 40 = 1936) → pair (40, 1936)
13. 44 divides 77440 (77440 ÷ 44 = 1760) → pair (44, 1760)
14. 55 divides 77440 (77440 ÷ 55 = 1408) → pair (55, 1408)
15. 64 divides 77440 (77440 ÷ 64 = 1210) → pair (64, 1210)
16. 80 divides 77440 (77440 ÷ 80 = 968) → pair (80, 968)
17. 88 divides 77440 (77440 ÷ 88 = 880) → pair (88, 880)
18. 110 divides 77440 (77440 ÷ 110 = 704) → pair (110, 704)
19. 121 divides 77440 (77440 ÷ 121 = 640) → pair (121, 640)
20. 128 divides 77440 (77440 ÷ 128 = 605) → pair (128, 605)
21. 160 divides 77440 (77440 ÷ 160 = 484) → pair (160, 484)
22. 176 divides 77440 (77440 ÷ 176 = 440) → pair (176, 440)
23. 220 divides 77440 (77440 ÷ 220 = 352) → pair (220, 352)
24. 242 divides 77440 (77440 ÷ 242 = 320) → pair (242, 320)
25. Collect all unique values: {1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 320, 352, 440, 484, 605, 640, 704, 880, 968, 1210, 1408, 1760, 1936, 2420, 3520, 3872, 4840, 7040, 7744, 9680, 15488, 19360, 38720, 77440} — total 48 divisors.
26. Sum: 1 + 2 + 4 + 5 + 8 + 10 + 11 + 16 + 20 + 22 + 32 + 40 + 44 + 55 + 64 + 80 + 88 + 110 + 121 + 128 + 160 + 176 + 220 + 242 + 320 + 352 + 440 + 484 + 605 + 640 + 704 + 880 + 968 + 1210 + 1408 + 1760 + 1936 + 2420 + 3520 + 3872 + 4840 + 7040 + 7744 + 9680 + 15488 + 19360 + 38720 + 77440 = 203490.

Nearby Examples

Related Operations for 77440

• Multiples of a Number — "outward" complement of divisors
• 77440 Prime Factorization — decompose into prime building blocks
• Find GCF of 77440 and another number
• Find LCM of 77440 and another number
• Is 77440 a perfect square? (odd divisor count ⇔ yes)

See also our tables of divisors:

• Table of all divisors from 1 to 100
• Table of all divisors from 1 to 500
• Table of all divisors from 1 to 1,000
• Table of all divisors from 1 to 10,000

What Is a Divisor?

A divisor (also called a factor) of a positive integer n is any positive integer d such that n ÷ d has no remainder. In other words, d divides n evenly.

Every positive integer n has at least two divisors: 1 and n itself (with 1 being the trivial case of having only itself). Numbers with exactly 2 divisors are prime; numbers with 3 or more divisors are composite.

Why use this calculator? Beyond just listing divisors, this tool computes the sum σ(n), the count τ(n), prime factorization, divisor pairs (useful for visual learners and factoring problems), and detects whether n is a prime, a perfect square, or a perfect number.

References

• [1] Divisor (Wikipedia)
• [2] Divisor function (Wikipedia)
• [3] Divisor (Wolfram MathWorld)

Divisors Calculation Examples

Find all divisors of these numbers: