Q: What is the sum of all factors of the number 320,780 excluding 320,780?

 A: 370,372

Why is 370,372 the sum of all factors of 320,780, excluding 320,780?

The factors of the number 320,780 are: 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 373, 430, 746, 860, 1492, 1865, 3730, 7460, 16039, 32078, 64156, 80195, 160390, 320780.

If you add them up, you will get the total of 321,150. Now subtract 320,780 to get 370,372


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