Q: What is the sum of all factors of the number 9,709,740 excluding 9,709,740?

A: 20,500,020

Why is 20,500,020 the sum of all factors of 9,709,740, excluding 9,709,740?

The factors of the number 9,709,740 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 17981, 35962, 53943, 71924, 89905, 107886, 161829, 179810, 215772, 269715, 323658, 359620, 485487, 539430, 647316, 809145, 970974, 1078860, 1618290, 1941948, 2427435, 3236580, 4854870, 9709740.

If you add them up, you will get the total of 9,709,760. Now subtract 9,709,740 to get 20,500,020