Q: What is the sum of all factors of the number 75,840 excluding 75,840?

A: 168,000

Why is 168,000 the sum of all factors of 75,840, excluding 75,840?

The factors of the number 75,840 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 158, 160, 192, 237, 240, 316, 320, 395, 474, 480, 632, 790, 948, 960, 1185, 1264, 1580, 1896, 2370, 2528, 3160, 3792, 4740, 5056, 6320, 7584, 9480, 12640, 15168, 18960, 25280, 37920, 75840.

If you add them up, you will get the total of 76,008. Now subtract 75,840 to get 168,000