Q: What is the sum of all factors of the number 255,285 excluding 255,285?

 A: 220,875

Why is 220,875 the sum of all factors of 255,285, excluding 255,285?

The factors of the number 255,285 are: 1, 3, 5, 9, 15, 27, 31, 45, 61, 93, 135, 155, 183, 279, 305, 465, 549, 837, 915, 1395, 1647, 1891, 2745, 4185, 5673, 8235, 9455, 17019, 28365, 51057, 85095, 255285.

If you add them up, you will get the total of 255,505. Now subtract 255,285 to get 220,875


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