Q: What is the sum of all factors of the number 103,840 excluding 103,840?

A: 168,320

Why is 168,320 the sum of all factors of 103,840, excluding 103,840?

The factors of the number 103,840 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 80, 88, 110, 118, 160, 176, 220, 236, 295, 352, 440, 472, 590, 649, 880, 944, 1180, 1298, 1760, 1888, 2360, 2596, 3245, 4720, 5192, 6490, 9440, 10384, 12980, 20768, 25960, 51920, 103840.

If you add them up, you will get the total of 104,008. Now subtract 103,840 to get 168,320