Q: What is the sum of all factors of the number 260,640 excluding 260,640?

A: 633,708

Why is 633,708 the sum of all factors of 260,640, excluding 260,640?

The factors of the number 260,640 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 181, 240, 288, 360, 362, 480, 543, 720, 724, 905, 1086, 1440, 1448, 1629, 1810, 2172, 2715, 2896, 3258, 3620, 4344, 5430, 5792, 6516, 7240, 8145, 8688, 10860, 13032, 14480, 16290, 17376, 21720, 26064, 28960, 32580, 43440, 52128, 65160, 86880, 130320, 260640.

If you add them up, you will get the total of 261,273. Now subtract 260,640 to get 633,708