Q: What is the sum of all factors of the number 1,989,765 excluding 1,989,765?

A: 1,799,955

Why is 1,799,955 the sum of all factors of 1,989,765, excluding 1,989,765?

The factors of the number 1,989,765 are: 1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 289, 405, 459, 765, 867, 1377, 1445, 2295, 2601, 4335, 4913, 6885, 7803, 13005, 14739, 23409, 24565, 39015, 44217, 73695, 117045, 132651, 221085, 397953, 663255, 1989765.

If you add them up, you will get the total of 1,989,766. Now subtract 1,989,765 to get 1,799,955