Q: What is the sum of all factors of the number 86,720 excluding 86,720?

 A: 120,544

Why is 120,544 the sum of all factors of 86,720, excluding 86,720?

The factors of the number 86,720 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 271, 320, 542, 1084, 1355, 2168, 2710, 4336, 5420, 8672, 10840, 17344, 21680, 43360, 86720.

If you add them up, you will get the total of 86,840. Now subtract 86,720 to get 120,544


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