Q: What is the sum of all factors of the number 642,928 excluding 642,928?

A: 825,728

Why is 825,728 the sum of all factors of 642,928, excluding 642,928?

The factors of the number 642,928 are: 1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 281, 286, 562, 572, 1124, 1144, 2248, 2288, 3091, 3653, 4496, 6182, 7306, 12364, 14612, 24728, 29224, 40183, 49456, 58448, 80366, 160732, 321464, 642928.

If you add them up, you will get the total of 643,753. Now subtract 642,928 to get 825,728