Q: What is the sum of all factors of the number 137,978 excluding 137,978?

 A: 79,942

Why is 79,942 the sum of all factors of 137,978, excluding 137,978?

The factors of the number 137,978 are: 1, 2, 19, 38, 3631, 7262, 68989, 137978.

If you add them up, you will get the total of 138,057. Now subtract 137,978 to get 79,942


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