Q: What is the sum of all factors of the number 257,490 excluding 257,490?

 A: 412,218

Why is 412,218 the sum of all factors of 257,490, excluding 257,490?

The factors of the number 257,490 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 2861, 5722, 8583, 14305, 17166, 25749, 28610, 42915, 51498, 85830, 128745, 257490.

If you add them up, you will get the total of 257,902. Now subtract 257,490 to get 412,218


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