Q: What is the sum of all factors of the number 102,240 excluding 102,240?

A: 251,568

Why is 251,568 the sum of all factors of 102,240, excluding 102,240?

The factors of the number 102,240 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 213, 240, 284, 288, 355, 360, 426, 480, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1440, 1704, 2130, 2272, 2556, 2840, 3195, 3408, 4260, 5112, 5680, 6390, 6816, 8520, 10224, 11360, 12780, 17040, 20448, 25560, 34080, 51120, 102240.

If you add them up, you will get the total of 102,491. Now subtract 102,240 to get 251,568