Q: What is the sum of all factors of the number 251,340 excluding 251,340?

A: 474,420

Why is 474,420 the sum of all factors of 251,340, excluding 251,340?

The factors of the number 251,340 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 71, 118, 142, 177, 213, 236, 284, 295, 354, 355, 426, 590, 708, 710, 852, 885, 1065, 1180, 1420, 1770, 2130, 3540, 4189, 4260, 8378, 12567, 16756, 20945, 25134, 41890, 50268, 62835, 83780, 125670, 251340.

If you add them up, you will get the total of 251,814. Now subtract 251,340 to get 474,420