Q: What is the sum of all factors of the number 161,128,647 excluding 161,128,647?

 A: 80,207,721

Why is 80,207,721 the sum of all factors of 161,128,647, excluding 161,128,647?

The factors of the number 161,128,647 are: 1, 3, 9, 41, 83, 123, 249, 369, 747, 3403, 5261, 10209, 15783, 30627, 47349, 215701, 436663, 647103, 1309989, 1941309, 3929967, 17903183, 53709549, 161128647.

If you add them up, you will get the total of 161,128,727. Now subtract 161,128,647 to get 80,207,721


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