Q: What is the sum of all factors of the number 65,480 excluding 65,480?

A: 81,940

Why is 81,940 the sum of all factors of 65,480, excluding 65,480?

The factors of the number 65,480 are: 1, 2, 4, 5, 8, 10, 20, 40, 1637, 3274, 6548, 8185, 13096, 16370, 32740, 65480.

If you add them up, you will get the total of 65,561. Now subtract 65,480 to get 81,940

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