Q: What is the sum of all factors of the number 638,884 excluding 638,884?

 A: 479,170

Why is 479,170 the sum of all factors of 638,884, excluding 638,884?

The factors of the number 638,884 are: 1, 2, 4, 159721, 319442, 638884.

If you add them up, you will get the total of 639,363. Now subtract 638,884 to get 479,170


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