Q: What is the sum of all factors of the number 640,138 excluding 640,138?

 A: 329,882

Why is 329,882 the sum of all factors of 640,138, excluding 640,138?

The factors of the number 640,138 are: 1, 2, 101, 202, 3169, 6338, 320069, 640138.

If you add them up, you will get the total of 640,467. Now subtract 640,138 to get 329,882


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