Q: What is the sum of all factors of the number 408,706,380 excluding 408,706,380?

A: 831,036,852

Why is 831,036,852 the sum of all factors of 408,706,380, excluding 408,706,380?

The factors of the number 408,706,380 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2270591, 4541182, 6811773, 9082364, 11352955, 13623546, 20435319, 22705910, 27247092, 34058865, 40870638, 45411820, 68117730, 81741276, 102176595, 136235460, 204353190, 408706380.

If you add them up, you will get the total of 408,707,211. Now subtract 408,706,380 to get 831,036,852