Q: What is the sum of all factors of the number 109,809,880 excluding 109,809,880?

A: 137,621,720

Why is 137,621,720 the sum of all factors of 109,809,880, excluding 109,809,880?

The factors of the number 109,809,880 are: 1, 2, 4, 5, 8, 10, 20, 40, 883, 1766, 3109, 3532, 4415, 6218, 7064, 8830, 12436, 15545, 17660, 24872, 31090, 35320, 62180, 124360, 2745247, 5490494, 10980988, 13726235, 21961976, 27452470, 54904940, 109809880.

If you add them up, you will get the total of 109,810,017. Now subtract 109,809,880 to get 137,621,720