Q: What is the sum of all factors of the number 420,642 excluding 420,642?

 A: 490,788

Why is 490,788 the sum of all factors of 420,642, excluding 420,642?

The factors of the number 420,642 are: 1, 2, 3, 6, 9, 18, 23369, 46738, 70107, 140214, 210321, 420642.

If you add them up, you will get the total of 421,132. Now subtract 420,642 to get 490,788


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