Factor Pairs of 40

All Factor Pairs of 40

Here are all the factor pairs of 40:

(1, 40)

(2, 20)

(4, 10)

(5, 8)

Total: 4 factor pairs

Visual Representation of Factors

These are all the factors of 40:

1

2

4

5

8

10

20

40

Properties of 40

Number Type

Abundant Number

Sum of All Factors

90

Sum of Proper Divisors

50

Total Factors

8

Prime Factorization

2³ × 5

Perfect Square?

No

How to Calculate Factor Pairs of 40

Step-by-Step Process

To find all factor pairs of 40, we need to identify all integers that divide 40 evenly (with no remainder).

Start with the smallest factor, which is always 1
Check each integer from 1 up to the square root of 40 (v40 ≈ 6.32)
For each factor found, its corresponding pair is calculated by dividing 40 by that factor

Calculation Example

Let's work through finding the factor pairs of 40:

Factor Check	Division	Result	Factor Pair
40 ÷ 1	40.00	Integer result	(1, 40)
40 ÷ 2	20.00	Integer result	(2, 20)
40 ÷ 3	13.33	Not a divisor	-
40 ÷ 4	10.00	Integer result	(4, 10)
40 ÷ 5	8.00	Integer result	(5, 8)
40 ÷ 6	6.67	Not a divisor	-

Explore More Factor Pairs

Check out factor pairs of these randomly selected numbers:

Number	Factor Pairs	Total Pairs	Details
4	(1, 4), (2, 2)	2	View Details
12	(1, 12), (2, 6), (3, 4)	3	View Details
39	(1, 39), (3, 13)	2	View Details
80	(1, 80), (2, 40), (4, 20), (5, 16), (8, 10)	5	View Details
96	(1, 96), (2, 48), (3, 32), (4, 24), (6, 16), (8, 12)	6	View Details
144	(1, 144), (2, 72), (3, 48), (4, 36), (6, 24), (8, 18), (9, 16), (12, 12)	8	View Details

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More About Abundant Numbers

Abundant Numbers

An abundant number is a positive integer for which the sum of its proper divisors is greater than the number itself. The number 40 is abundant because the sum of its proper divisors (50) exceeds 40.

The smallest abundant number is 12, whose proper divisors are 1, 2, 3, 4, and 6, which sum to 16.