Q: What is the sum of all factors of the number 213,780 excluding 213,780?

A: 471,660

Why is 471,660 the sum of all factors of 213,780, excluding 213,780?

The factors of the number 213,780 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 509, 1018, 1527, 2036, 2545, 3054, 3563, 5090, 6108, 7126, 7635, 10180, 10689, 14252, 15270, 17815, 21378, 30540, 35630, 42756, 53445, 71260, 106890, 213780.

If you add them up, you will get the total of 214,251. Now subtract 213,780 to get 471,660