Q: What is the sum of all factors of the number 31,120 excluding 31,120?

 A: 41,420

Why is 41,420 the sum of all factors of 31,120, excluding 31,120?

The factors of the number 31,120 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 15560, 31120.

If you add them up, you will get the total of 31,161. Now subtract 31,120 to get 41,420


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