Q: What is the sum of all factors of the number 70,780 excluding 70,780?

A: 77,900

Why is 77,900 the sum of all factors of 70,780, excluding 70,780?

The factors of the number 70,780 are: 1, 2, 4, 5, 10, 20, 3539, 7078, 14156, 17695, 35390, 70780.

If you add them up, you will get the total of 70,857. Now subtract 70,780 to get 77,900

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