Q: What is the sum of all factors of the number 30,660 excluding 30,660?

A: 68,796

Why is 68,796 the sum of all factors of 30,660, excluding 30,660?

The factors of the number 30,660 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 73, 84, 105, 140, 146, 210, 219, 292, 365, 420, 438, 511, 730, 876, 1022, 1095, 1460, 1533, 2044, 2190, 2555, 3066, 4380, 5110, 6132, 7665, 10220, 15330, 30660.

If you add them up, you will get the total of 30,728. Now subtract 30,660 to get 68,796