Q: What is the sum of all factors of the number 655,745,349 excluding 655,745,349?

A: 381,978,555

Why is 381,978,555 the sum of all factors of 655,745,349, excluding 655,745,349?

The factors of the number 655,745,349 are: 1, 3, 7, 21, 41, 73, 123, 219, 287, 511, 861, 1533, 2993, 8979, 10433, 20951, 31299, 62853, 73031, 219093, 427753, 761609, 1283259, 2284827, 2994271, 5331263, 8982813, 15993789, 31225969, 93677907, 218581783, 655745349.

If you add them up, you will get the total of 655,745,730. Now subtract 655,745,349 to get 381,978,555