Q: What is the sum of all factors of the number 64,140 excluding 64,140?

 A: 115,620

Why is 115,620 the sum of all factors of 64,140, excluding 64,140?

The factors of the number 64,140 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1069, 2138, 3207, 4276, 5345, 6414, 10690, 12828, 16035, 21380, 32070, 64140.

If you add them up, you will get the total of 64,255. Now subtract 64,140 to get 115,620


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