Q: What is the sum of all factors of the number 63,940 excluding 63,940?

 A: 77,180

Why is 77,180 the sum of all factors of 63,940, excluding 63,940?

The factors of the number 63,940 are: 1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 460, 556, 695, 1390, 2780, 3197, 6394, 12788, 15985, 31970, 63940.

If you add them up, you will get the total of 64,017. Now subtract 63,940 to get 77,180


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