Q: What is the sum of all factors of the number 639,992 excluding 639,992?

 A: 560,008

Why is 560,008 the sum of all factors of 639,992, excluding 639,992?

The factors of the number 639,992 are: 1, 2, 4, 8, 79999, 159998, 319996, 639992.

If you add them up, you will get the total of 640,552. Now subtract 639,992 to get 560,008


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