Q: What is the sum of all factors of the number 639,785 excluding 639,785?

 A: 133,015

Why is 133,015 the sum of all factors of 639,785, excluding 639,785?

The factors of the number 639,785 are: 1, 5, 199, 643, 995, 3215, 127957, 639785.

If you add them up, you will get the total of 639,918. Now subtract 639,785 to get 133,015


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