Q: What is the sum of all factors of the number 138,638 excluding 138,638?

 A: 71,650

Why is 71,650 the sum of all factors of 138,638, excluding 138,638?

The factors of the number 138,638 are: 1, 2, 103, 206, 673, 1346, 69319, 138638.

If you add them up, you will get the total of 138,709. Now subtract 138,638 to get 71,650


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