Q: What is the sum of all factors of the number 256,290 excluding 256,290?

 A: 358,878

Why is 358,878 the sum of all factors of 256,290, excluding 256,290?

The factors of the number 256,290 are: 1, 2, 3, 5, 6, 10, 15, 30, 8543, 17086, 25629, 42715, 51258, 85430, 128145, 256290.

If you add them up, you will get the total of 256,648. Now subtract 256,290 to get 358,878


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