Q: What is the sum of all factors of the number 143,680 excluding 143,680?

 A: 199,220

Why is 199,220 the sum of all factors of 143,680, excluding 143,680?

The factors of the number 143,680 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 449, 898, 1796, 2245, 3592, 4490, 7184, 8980, 14368, 17960, 28736, 35920, 71840, 143680.

If you add them up, you will get the total of 143,879. Now subtract 143,680 to get 199,220


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