Q: What is the sum of all factors of the number 30,801,220 excluding 30,801,220?

A: 35,726,780

Why is 35,726,780 the sum of all factors of 30,801,220, excluding 30,801,220?

The factors of the number 30,801,220 are: 1, 2, 4, 5, 10, 20, 71, 109, 142, 199, 218, 284, 355, 398, 436, 545, 710, 796, 995, 1090, 1420, 1990, 2180, 3980, 7739, 14129, 15478, 21691, 28258, 30956, 38695, 43382, 56516, 70645, 77390, 86764, 108455, 141290, 154780, 216910, 282580, 433820, 1540061, 3080122, 6160244, 7700305, 15400610, 30801220.

If you add them up, you will get the total of 30,801,255. Now subtract 30,801,220 to get 35,726,780