Q: What is the sum of all factors of the number 7,125 excluding 7,125?

A: 5,355

Why is 5,355 the sum of all factors of 7,125, excluding 7,125?

The factors of the number 7,125 are: 1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1425, 2375, 7125.

If you add them up, you will get the total of 7,130. Now subtract 7,125 to get 5,355

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