Q: What is the sum of all factors of the number 320,421,216 excluding 320,421,216?

 A: 520,684,728

Why is 520,684,728 the sum of all factors of 320,421,216, excluding 320,421,216?

The factors of the number 320,421,216 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 3337721, 6675442, 10013163, 13350884, 20026326, 26701768, 40052652, 53403536, 80105304, 106807072, 160210608, 320421216.

If you add them up, you will get the total of 320,421,736. Now subtract 320,421,216 to get 520,684,728


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