Q: What is the sum of all factors of the number 285,840 excluding 285,840?

A: 676,524

Why is 676,524 the sum of all factors of 285,840, excluding 285,840?

The factors of the number 285,840 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 397, 720, 794, 1191, 1588, 1985, 2382, 3176, 3573, 3970, 4764, 5955, 6352, 7146, 7940, 9528, 11910, 14292, 15880, 17865, 19056, 23820, 28584, 31760, 35730, 47640, 57168, 71460, 95280, 142920, 285840.

If you add them up, you will get the total of 286,516. Now subtract 285,840 to get 676,524