Q: What is the sum of all factors of the number 215,730 excluding 215,730?

A: 406,350

Why is 406,350 the sum of all factors of 215,730, excluding 215,730?

The factors of the number 215,730 are: 1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 47, 51, 54, 85, 90, 94, 102, 135, 141, 153, 170, 235, 255, 270, 282, 306, 423, 459, 470, 510, 705, 765, 799, 846, 918, 1269, 1410, 1530, 1598, 2115, 2295, 2397, 2538, 3995, 4230, 4590, 4794, 6345, 7191, 7990, 11985, 12690, 14382, 21573, 23970, 35955, 43146, 71910, 107865, 215730.

If you add them up, you will get the total of 216,136. Now subtract 215,730 to get 406,350