Q: What is the sum of all factors of the number 612,074,125 excluding 612,074,125?

A: 215,495,891

Why is 215,495,891 the sum of all factors of 612,074,125, excluding 612,074,125?

The factors of the number 612,074,125 are: 1, 5, 13, 25, 65, 125, 181, 325, 905, 1625, 2081, 2353, 4525, 10405, 11765, 22625, 27053, 52025, 58825, 135265, 260125, 294125, 376661, 676325, 1883305, 3381625, 4896593, 9416525, 24482965, 47082625, 122414825, 612074125.

If you add them up, you will get the total of 612,074,340. Now subtract 612,074,125 to get 215,495,891