Q: What is the sum of all factors of the number 291,330 excluding 291,330?

A: 555,390

Why is 555,390 the sum of all factors of 291,330, excluding 291,330?

The factors of the number 291,330 are: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 83, 90, 117, 130, 135, 166, 195, 234, 249, 270, 351, 390, 415, 498, 585, 702, 747, 830, 1079, 1170, 1245, 1494, 1755, 2158, 2241, 2490, 3237, 3510, 3735, 4482, 5395, 6474, 7470, 9711, 10790, 11205, 16185, 19422, 22410, 29133, 32370, 48555, 58266, 97110, 145665, 291330.

If you add them up, you will get the total of 291,885. Now subtract 291,330 to get 555,390