Q: What is the sum of all factors of the number 7,878,200 excluding 7,878,200?

A: 12,109,360

Why is 12,109,360 the sum of all factors of 7,878,200, excluding 7,878,200?

The factors of the number 7,878,200 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 3581, 7162, 14324, 17905, 28648, 35810, 39391, 71620, 78782, 89525, 143240, 157564, 179050, 196955, 315128, 358100, 393910, 716200, 787820, 984775, 1575640, 1969550, 3939100, 7878200.

If you add them up, you will get the total of 7,878,212. Now subtract 7,878,200 to get 12,109,360