Q: What is the sum of all factors of the number 423,123,320 excluding 423,123,320?

A: 529,490,680

Why is 529,490,680 the sum of all factors of 423,123,320, excluding 423,123,320?

The factors of the number 423,123,320 are: 1, 2, 4, 5, 8, 10, 20, 40, 3067, 3449, 6134, 6898, 12268, 13796, 15335, 17245, 24536, 27592, 30670, 34490, 61340, 68980, 122680, 137960, 10578083, 21156166, 42312332, 52890415, 84624664, 105780830, 211561660, 423123320.

If you add them up, you will get the total of 423,123,849. Now subtract 423,123,320 to get 529,490,680