Q: What is the sum of all factors of the number 18,780 excluding 18,780?

 A: 33,972

Why is 33,972 the sum of all factors of 18,780, excluding 18,780?

The factors of the number 18,780 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1252, 1565, 1878, 3130, 3756, 4695, 6260, 9390, 18780.

If you add them up, you will get the total of 18,813. Now subtract 18,780 to get 33,972


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