Q: What is the sum of all factors of the number 431,636,645 excluding 431,636,645?

A: 145,999,195

Why is 145,999,195 the sum of all factors of 431,636,645, excluding 431,636,645?

The factors of the number 431,636,645 are: 1, 5, 11, 55, 79, 121, 395, 605, 821, 869, 1331, 4105, 4345, 6655, 9031, 9559, 45155, 47795, 64859, 99341, 105149, 324295, 496705, 525745, 713449, 1092751, 3567245, 5463755, 7847939, 39239695, 86327329, 431636645.

If you add them up, you will get the total of 431,636,790. Now subtract 431,636,645 to get 145,999,195