What is the Sum of Factors of 520?

The Sum of Factors of 520 means that you add up all the factors of 520. You may be looking for the Sum of Factors of 520 including or excluding 520 itself.

Here is the calculation and answer to the Sum of all Factors of 520 including 520:

1 + 2 + 4 + 5 + 8 + 10 + 13 + 20 + 26 + 40 + 52 + 65 + 104 + 130 + 260 + 520 = 1260

Here is the calculation and answer to the Sum of Factors of 520 if you exclude 520 itself:

1 + 2 + 4 + 5 + 8 + 10 + 13 + 20 + 26 + 40 + 52 + 65 + 104 + 130 + 260 = 740

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What is the Sum of Factors of 521?
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