Q: What is the sum of all factors of the number 191,840 excluding 191,840?

A: 307,120

Why is 307,120 the sum of all factors of 191,840, excluding 191,840?

The factors of the number 191,840 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 109, 110, 160, 176, 218, 220, 352, 436, 440, 545, 872, 880, 1090, 1199, 1744, 1760, 2180, 2398, 3488, 4360, 4796, 5995, 8720, 9592, 11990, 17440, 19184, 23980, 38368, 47960, 95920, 191840.

If you add them up, you will get the total of 192,147. Now subtract 191,840 to get 307,120