Divisors of 672: All 24 Factors
Quick Answer
672 has 24 divisors (factors): 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672.
Sum: 2016.
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 672
The number 672 has 24 divisors:
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
Divisor Pairs of 672
Each pair multiplies to 672:
| Factor 1 | × | Factor 2 | = | Product |
|---|---|---|---|---|
| 1 | × | 672 | = | 672 |
| 2 | × | 336 | = | 672 |
| 3 | × | 224 | = | 672 |
| 4 | × | 168 | = | 672 |
| 6 | × | 112 | = | 672 |
| 7 | × | 96 | = | 672 |
| 8 | × | 84 | = | 672 |
| 12 | × | 56 | = | 672 |
| 14 | × | 48 | = | 672 |
| 16 | × | 42 | = | 672 |
| 21 | × | 32 | = | 672 |
| 24 | × | 28 | = | 672 |
Number of Divisors
The number 672 has 24 divisors, written as τ(672) = 24 in number theory.
Sum of Divisors
σ(672) = 1 + 2 + 3 + 4 + 6 + 7 + 8 + 12 + 14 + 16 + 21 + 24 + 28 + 32 + 42 + 48 + 56 + 84 + 96 + 112 + 168 + 224 + 336 + 672 = 2016
Prime Factorization of 672
Properties of 672
- 672 is composite.
- 672 is not a perfect square.
- Number of divisors: 24.
- Sum of divisors: 2016.
Common Divisors with Another Number?
Looking for the divisors that 672 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 672
An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √672 ≈ 25.92. If i divides 672, then both i and 672/i are divisors.
- 1 divides 672 (672 ÷ 1 = 672) → pair (1, 672)
- 2 divides 672 (672 ÷ 2 = 336) → pair (2, 336)
- 3 divides 672 (672 ÷ 3 = 224) → pair (3, 224)
- 4 divides 672 (672 ÷ 4 = 168) → pair (4, 168)
- 6 divides 672 (672 ÷ 6 = 112) → pair (6, 112)
- 7 divides 672 (672 ÷ 7 = 96) → pair (7, 96)
- 8 divides 672 (672 ÷ 8 = 84) → pair (8, 84)
- 12 divides 672 (672 ÷ 12 = 56) → pair (12, 56)
- 14 divides 672 (672 ÷ 14 = 48) → pair (14, 48)
- 16 divides 672 (672 ÷ 16 = 42) → pair (16, 42)
- 21 divides 672 (672 ÷ 21 = 32) → pair (21, 32)
- 24 divides 672 (672 ÷ 24 = 28) → pair (24, 28)
- Collect all unique values: {1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672} — total 24 divisors.
- Sum: 1 + 2 + 3 + 4 + 6 + 7 + 8 + 12 + 14 + 16 + 21 + 24 + 28 + 32 + 42 + 48 + 56 + 84 + 96 + 112 + 168 + 224 + 336 + 672 = 2016.
Nearby Examples
Related Operations for 672
- Multiples of 672 — "outward" complement; M is a multiple of 672 ⇔ 672 is a divisor of M
- 672 Prime Factorization — decompose into prime building blocks
- Find GCF of 672 and another number
- Find LCM of 672 and another number
- Is 672 a perfect square? (odd divisor count ⇔ yes)
See also our tables of divisors:
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.
Divisors Calculation Examples
Find all divisors of these numbers:
Related Calculators
- Multiples of a Number — "outward" complement
- Prime Factorization — product of prime divisors
- Greatest Common Factor (GCF) — largest common divisor of 2+ numbers
- Least Common Multiple (LCM) — smallest common multiple
- Is N a Perfect Square? — odd divisor count check