Divisors of 1170: All 24 Factors

Quick Answer

1170 has 24 divisors (factors): 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170.

Sum: 3276.

Divisors (Factors) Calculator


  Ex.: 12, 36, 100, 1024, 1728, etc.
24 divisors
1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170

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 1170

The number 1170 has 24 divisors:

1,  2,  3,  5,  6,  9,  10,  13,  15,  18,  26,  30,  39,  45,  65,  78,  90,  117,  130,  195,  234,  390,  585,  1170

Divisor Pairs of 1170

Each pair multiplies to 1170:

Factor 1×Factor 2=Product
1×1170=1170
2×585=1170
3×390=1170
5×234=1170
6×195=1170
9×130=1170
10×117=1170
13×90=1170
15×78=1170
18×65=1170
26×45=1170
30×39=1170

Number of Divisors

The number 1170 has 24 divisors, written as τ(1170) = 24 in number theory.

Sum of Divisors

σ(1170) = 1 + 2 + 3 + 5 + 6 + 9 + 10 + 13 + 15 + 18 + 26 + 30 + 39 + 45 + 65 + 78 + 90 + 117 + 130 + 195 + 234 + 390 + 585 + 1170 = 3276

Properties of 1170

  • 1170 is composite.
  • 1170 is not a perfect square.
  • Number of divisors: 24.
  • Sum of divisors: 3276.

Common Divisors with Another Number?

Looking for the divisors that 1170 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 1170

An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √1170 ≈ 34.21. If i divides 1170, then both i and 1170/i are divisors.

  1. 1 divides 1170 (1170 ÷ 1 = 1170) → pair (1, 1170)
  2. 2 divides 1170 (1170 ÷ 2 = 585) → pair (2, 585)
  3. 3 divides 1170 (1170 ÷ 3 = 390) → pair (3, 390)
  4. 5 divides 1170 (1170 ÷ 5 = 234) → pair (5, 234)
  5. 6 divides 1170 (1170 ÷ 6 = 195) → pair (6, 195)
  6. 9 divides 1170 (1170 ÷ 9 = 130) → pair (9, 130)
  7. 10 divides 1170 (1170 ÷ 10 = 117) → pair (10, 117)
  8. 13 divides 1170 (1170 ÷ 13 = 90) → pair (13, 90)
  9. 15 divides 1170 (1170 ÷ 15 = 78) → pair (15, 78)
  10. 18 divides 1170 (1170 ÷ 18 = 65) → pair (18, 65)
  11. 26 divides 1170 (1170 ÷ 26 = 45) → pair (26, 45)
  12. 30 divides 1170 (1170 ÷ 30 = 39) → pair (30, 39)
  13. Collect all unique values: {1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170} — total 24 divisors.
  14. Sum: 1 + 2 + 3 + 5 + 6 + 9 + 10 + 13 + 15 + 18 + 26 + 30 + 39 + 45 + 65 + 78 + 90 + 117 + 130 + 195 + 234 + 390 + 585 + 1170 = 3276.

Nearby Examples

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Related Operations for 1170

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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