Q: What is the sum of all factors of the number 253,780 excluding 253,780?

A: 279,200

Why is 279,200 the sum of all factors of 253,780, excluding 253,780?

The factors of the number 253,780 are: 1, 2, 4, 5, 10, 20, 12689, 25378, 50756, 63445, 126890, 253780.

If you add them up, you will get the total of 254,059. Now subtract 253,780 to get 279,200

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