Q: What is the sum of all factors of the number 647,640,145 excluding 647,640,145?

 A: 129,528,035

Why is 129,528,035 the sum of all factors of 647,640,145, excluding 647,640,145?

The factors of the number 647,640,145 are: 1, 5, 129528029, 647640145.

If you add them up, you will get the total of 647,640,274. Now subtract 647,640,145 to get 129,528,035


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