Q: What is the sum of all factors of the number 123,123,135 excluding 123,123,135?

A: 85,688,385

Why is 85,688,385 the sum of all factors of 123,123,135, excluding 123,123,135?

The factors of the number 123,123,135 are: 1, 3, 5, 15, 19, 57, 95, 151, 285, 453, 755, 2265, 2861, 2869, 8583, 8607, 14305, 14345, 42915, 43035, 54359, 163077, 271795, 432011, 815385, 1296033, 2160055, 6480165, 8208209, 24624627, 41041045, 123123135.

If you add them up, you will get the total of 123,123,220. Now subtract 123,123,135 to get 85,688,385