Q: What is the sum of all factors of the number 128,925 excluding 128,925?

 A: 109,155

Why is 109,155 the sum of all factors of 128,925, excluding 128,925?

The factors of the number 128,925 are: 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 191, 225, 573, 675, 955, 1719, 2865, 4775, 5157, 8595, 14325, 25785, 42975, 128925.

If you add them up, you will get the total of 129,034. Now subtract 128,925 to get 109,155


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