Q: What is the sum of all factors of the number 20,920 excluding 20,920?

A: 26,240

Why is 26,240 the sum of all factors of 20,920, excluding 20,920?

The factors of the number 20,920 are: 1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 10460, 20920.

If you add them up, you will get the total of 20,946. Now subtract 20,920 to get 26,240

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