Q: What is the sum of all factors of the number 305,145,255 excluding 305,145,255?

A: 205,536,345

Why is 205,536,345 the sum of all factors of 305,145,255, excluding 305,145,255?

The factors of the number 305,145,255 are: 1, 3, 5, 15, 23, 69, 115, 345, 571, 1549, 1713, 2855, 4647, 7745, 8565, 13133, 23235, 35627, 39399, 65665, 106881, 178135, 196995, 534405, 884479, 2653437, 4422395, 13267185, 20343017, 61029051, 101715085, 305145255.

If you add them up, you will get the total of 305,145,460. Now subtract 305,145,255 to get 205,536,345