Q: What is the sum of all factors of the number 3,450 excluding 3,450?

A: 5,478

Why is 5,478 the sum of all factors of 3,450, excluding 3,450?

The factors of the number 3,450 are: 1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 345, 575, 690, 1150, 1725, 3450.

If you add them up, you will get the total of 3,455. Now subtract 3,450 to get 5,478

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