Q: What is the sum of all factors of the number 256,170,280 excluding 256,170,280?

A: 354,119,360

Why is 354,119,360 the sum of all factors of 256,170,280, excluding 256,170,280?

The factors of the number 256,170,280 are: 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 376721, 753442, 1506884, 1883605, 3013768, 3767210, 6404257, 7534420, 12808514, 15068840, 25617028, 32021285, 51234056, 64042570, 128085140, 256170280.

If you add them up, you will get the total of 256,170,634. Now subtract 256,170,280 to get 354,119,360