Q: What is the sum of all factors of the number 87,290 excluding 87,290?

 A: 102,790

Why is 102,790 the sum of all factors of 87,290, excluding 87,290?

The factors of the number 87,290 are: 1, 2, 5, 7, 10, 14, 29, 35, 43, 58, 70, 86, 145, 203, 215, 290, 301, 406, 430, 602, 1015, 1247, 1505, 2030, 2494, 3010, 6235, 8729, 12470, 17458, 43645, 87290.

If you add them up, you will get the total of 87,392. Now subtract 87,290 to get 102,790


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