Q: What is the sum of all factors of the number 399,072 excluding 399,072?

 A: 648,744

Why is 648,744 the sum of all factors of 399,072, excluding 399,072?

The factors of the number 399,072 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 4157, 8314, 12471, 16628, 24942, 33256, 49884, 66512, 99768, 133024, 199536, 399072.

If you add them up, you will get the total of 399,720. Now subtract 399,072 to get 648,744


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