Q: What is the sum of all factors of the number 4,078,125 excluding 4,078,125?

A: 3,538,965

Why is 3,538,965 the sum of all factors of 4,078,125, excluding 4,078,125?

The factors of the number 4,078,125 are: 1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 625, 725, 1125, 1305, 1875, 2175, 3125, 3625, 5625, 6525, 9375, 10875, 15625, 18125, 28125, 32625, 46875, 54375, 90625, 140625, 163125, 271875, 453125, 815625, 1359375, 4078125.

If you add them up, you will get the total of 4,078,128. Now subtract 4,078,125 to get 3,538,965