Divisors of 8320: All 32 Factors

Quick Answer

8320 has 32 divisors (factors): 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320.

Sum: 21420.

Divisors (Factors) Calculator


  Ex.: 12, 36, 100, 1024, 1728, etc.
32 divisors
1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320

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 8320

The number 8320 has 32 divisors:

1,  2,  4,  5,  8,  10,  13,  16,  20,  26,  32,  40,  52,  64,  65,  80,  104,  128,  130,  160,  208,  260,  320,  416,  520,  640,  832,  1040,  1664,  2080,  4160,  8320

Divisor Pairs of 8320

Each pair multiplies to 8320:

Factor 1×Factor 2=Product
1×8320=8320
2×4160=8320
4×2080=8320
5×1664=8320
8×1040=8320
10×832=8320
13×640=8320
16×520=8320
20×416=8320
26×320=8320
32×260=8320
40×208=8320
52×160=8320
64×130=8320
65×128=8320
80×104=8320

Number of Divisors

The number 8320 has 32 divisors, written as τ(8320) = 32 in number theory.

Sum of Divisors

σ(8320) = 1 + 2 + 4 + 5 + 8 + 10 + 13 + 16 + 20 + 26 + 32 + 40 + 52 + 64 + 65 + 80 + 104 + 128 + 130 + 160 + 208 + 260 + 320 + 416 + 520 + 640 + 832 + 1040 + 1664 + 2080 + 4160 + 8320 = 21420

Properties of 8320

  • 8320 is composite.
  • 8320 is not a perfect square.
  • Number of divisors: 32.
  • Sum of divisors: 21420.

Common Divisors with Another Number?

Looking for the divisors that 8320 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 8320

An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √8320 ≈ 91.21. If i divides 8320, then both i and 8320/i are divisors.

  1. 1 divides 8320 (8320 ÷ 1 = 8320) → pair (1, 8320)
  2. 2 divides 8320 (8320 ÷ 2 = 4160) → pair (2, 4160)
  3. 4 divides 8320 (8320 ÷ 4 = 2080) → pair (4, 2080)
  4. 5 divides 8320 (8320 ÷ 5 = 1664) → pair (5, 1664)
  5. 8 divides 8320 (8320 ÷ 8 = 1040) → pair (8, 1040)
  6. 10 divides 8320 (8320 ÷ 10 = 832) → pair (10, 832)
  7. 13 divides 8320 (8320 ÷ 13 = 640) → pair (13, 640)
  8. 16 divides 8320 (8320 ÷ 16 = 520) → pair (16, 520)
  9. 20 divides 8320 (8320 ÷ 20 = 416) → pair (20, 416)
  10. 26 divides 8320 (8320 ÷ 26 = 320) → pair (26, 320)
  11. 32 divides 8320 (8320 ÷ 32 = 260) → pair (32, 260)
  12. 40 divides 8320 (8320 ÷ 40 = 208) → pair (40, 208)
  13. 52 divides 8320 (8320 ÷ 52 = 160) → pair (52, 160)
  14. 64 divides 8320 (8320 ÷ 64 = 130) → pair (64, 130)
  15. 65 divides 8320 (8320 ÷ 65 = 128) → pair (65, 128)
  16. 80 divides 8320 (8320 ÷ 80 = 104) → pair (80, 104)
  17. Collect all unique values: {1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320} — total 32 divisors.
  18. Sum: 1 + 2 + 4 + 5 + 8 + 10 + 13 + 16 + 20 + 26 + 32 + 40 + 52 + 64 + 65 + 80 + 104 + 128 + 130 + 160 + 208 + 260 + 320 + 416 + 520 + 640 + 832 + 1040 + 1664 + 2080 + 4160 + 8320 = 21420.

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Related Operations for 8320

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.

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