Q: What is the sum of all factors of the number 385,860 excluding 385,860?

A: 722,940

Why is 722,940 the sum of all factors of 385,860, excluding 385,860?

The factors of the number 385,860 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 109, 118, 177, 218, 236, 295, 327, 354, 436, 545, 590, 654, 708, 885, 1090, 1180, 1308, 1635, 1770, 2180, 3270, 3540, 6431, 6540, 12862, 19293, 25724, 32155, 38586, 64310, 77172, 96465, 128620, 192930, 385860.

If you add them up, you will get the total of 386,582. Now subtract 385,860 to get 722,940