Q: What is the sum of all factors of the number 127,800 excluding 127,800?

A: 307,440

Why is 307,440 the sum of all factors of 127,800, excluding 127,800?

The factors of the number 127,800 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 71, 72, 75, 90, 100, 120, 142, 150, 180, 200, 213, 225, 284, 300, 355, 360, 426, 450, 568, 600, 639, 710, 852, 900, 1065, 1278, 1420, 1704, 1775, 1800, 2130, 2556, 2840, 3195, 3550, 4260, 5112, 5325, 6390, 7100, 8520, 10650, 12780, 14200, 15975, 21300, 25560, 31950, 42600, 63900, 127800.

If you add them up, you will get the total of 128,107. Now subtract 127,800 to get 307,440