Q: What is the sum of all factors of the number 210,870 excluding 210,870?

A: 411,210

Why is 411,210 the sum of all factors of 210,870, excluding 210,870?

The factors of the number 210,870 are: 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 71, 90, 99, 110, 135, 142, 165, 198, 213, 270, 297, 330, 355, 426, 495, 594, 639, 710, 781, 990, 1065, 1278, 1485, 1562, 1917, 2130, 2343, 2970, 3195, 3834, 3905, 4686, 6390, 7029, 7810, 9585, 11715, 14058, 19170, 21087, 23430, 35145, 42174, 70290, 105435, 210870.

If you add them up, you will get the total of 211,281. Now subtract 210,870 to get 411,210