Q: What is the sum of all factors of the number 287,080 excluding 287,080?

 A: 358,940

Why is 358,940 the sum of all factors of 287,080, excluding 287,080?

The factors of the number 287,080 are: 1, 2, 4, 5, 8, 10, 20, 40, 7177, 14354, 28708, 35885, 57416, 71770, 143540, 287080.

If you add them up, you will get the total of 287,438. Now subtract 287,080 to get 358,940


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