Is 40 an abundant number and what is its abundance?

Is 40 an abundant number?

Here we will explain and calculate if 40 is an abundant number and its abundance if applicable.

40 is an abundant number if the sum of its proper divisors is greater than 40.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 5 + 8 + 10 + 20 = 50.

50 is greater than 40. Therefore, 40 is an abundant number.

The abundance of 40 is the sum of its proper divisors minus 40. Thus, the abundance of 40 is 50 - 40 = 10

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