Q: What is the sum of all factors of the number 279,400 excluding 279,400?

A: 434,840

Why is 434,840 the sum of all factors of 279,400, excluding 279,400?

The factors of the number 279,400 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 127, 200, 220, 254, 275, 440, 508, 550, 635, 1016, 1100, 1270, 1397, 2200, 2540, 2794, 3175, 5080, 5588, 6350, 6985, 11176, 12700, 13970, 25400, 27940, 34925, 55880, 69850, 139700, 279400.

If you add them up, you will get the total of 279,834. Now subtract 279,400 to get 434,840