Q: What is the sum of all factors of the number 120 excluding 120?

 A: 240

Why is 240 the sum of all factors of 120, excluding 120?

The factors of the number 120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120.

If you add them up, you will get the total of 360. Now subtract 120 to get 240


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