Is 644 an abundant number and what is its abundance?

Is 644 an abundant number?

Here we will explain and calculate if 644 is an abundant number and its abundance if applicable.

644 is an abundant number if the sum of its proper divisors is greater than 644.

The sum of its proper divisors is calculated as follows: 1 + 2 + 4 + 7 + 14 + 23 + 28 + 46 + 92 + 161 + 322 = 700.

700 is greater than 644. Therefore, 644 is an abundant number.

The abundance of 644 is the sum of its proper divisors minus 644. Thus, the abundance of 644 is 700 - 644 = 56

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