Q: What is the sum of all factors of the number 657,506,680 excluding 657,506,680?

A: 836,255,720

Why is 836,255,720 the sum of all factors of 657,506,680, excluding 657,506,680?

The factors of the number 657,506,680 are: 1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 159589, 319178, 638356, 797945, 1276712, 1595890, 3191780, 6383560, 16437667, 32875334, 65750668, 82188335, 131501336, 164376670, 328753340, 657506680.

If you add them up, you will get the total of 657,507,516. Now subtract 657,506,680 to get 836,255,720