What is the Sum of Factors of 400?

The Sum of Factors of 400 means that you add up all the factors of 400. You may be looking for the Sum of Factors of 400 including or excluding 400 itself.

Here is the calculation and answer to the Sum of all Factors of 400 including 400:

1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 25 + 40 + 50 + 80 + 100 + 200 + 400 = 961

Here is the calculation and answer to the Sum of Factors of 400 if you exclude 400 itself:

1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 25 + 40 + 50 + 80 + 100 + 200 = 561

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What is the Sum of Factors of 401?
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