Q: What is the sum of all factors of the number 87,390 excluding 87,390?

 A: 140,058

Why is 140,058 the sum of all factors of 87,390, excluding 87,390?

The factors of the number 87,390 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 971, 1942, 2913, 4855, 5826, 8739, 9710, 14565, 17478, 29130, 43695, 87390.

If you add them up, you will get the total of 87,530. Now subtract 87,390 to get 140,058


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