Q: What is the sum of all factors of the number 391,128 excluding 391,128?

 A: 612,072

Why is 612,072 the sum of all factors of 391,128, excluding 391,128?

The factors of the number 391,128 are: 1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 379, 516, 758, 1032, 1137, 1516, 2274, 3032, 4548, 9096, 16297, 32594, 48891, 65188, 97782, 130376, 195564, 391128.

If you add them up, you will get the total of 391,740. Now subtract 391,128 to get 612,072


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