Q: What is the sum of all factors of the number 215,940 excluding 215,940?

A: 409,020

Why is 409,020 the sum of all factors of 215,940, excluding 215,940?

The factors of the number 215,940 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 61, 118, 122, 177, 183, 236, 244, 295, 305, 354, 366, 590, 610, 708, 732, 885, 915, 1180, 1220, 1770, 1830, 3540, 3599, 3660, 7198, 10797, 14396, 17995, 21594, 35990, 43188, 53985, 71980, 107970, 215940.

If you add them up, you will get the total of 216,349. Now subtract 215,940 to get 409,020