Q: What is the sum of all factors of the number 391,930 excluding 391,930?

 A: 489,350

Why is 489,350 the sum of all factors of 391,930, excluding 391,930?

The factors of the number 391,930 are: 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 509, 770, 1018, 2545, 3563, 5090, 5599, 7126, 11198, 17815, 27995, 35630, 39193, 55990, 78386, 195965, 391930.

If you add them up, you will get the total of 392,419. Now subtract 391,930 to get 489,350


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