Q: What is the sum of all factors of the number 280,401 excluding 280,401?

A: 142,959

Why is 142,959 the sum of all factors of 280,401, excluding 280,401?

The factors of the number 280,401 are: 1, 3, 11, 29, 33, 87, 293, 319, 879, 957, 3223, 8497, 9669, 25491, 93467, 280401.

If you add them up, you will get the total of 280,543. Now subtract 280,401 to get 142,959

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