Q: What is the sum of all factors of the number 654,435,015 excluding 654,435,015?

A: 479,114,745

Why is 479,114,745 the sum of all factors of 654,435,015, excluding 654,435,015?

The factors of the number 654,435,015 are: 1, 3, 5, 13, 15, 39, 65, 193, 195, 579, 965, 2509, 2895, 7527, 12545, 17389, 37635, 52167, 86945, 226057, 260835, 678171, 1130285, 3356077, 3390855, 10068231, 16780385, 43629001, 50341155, 130887003, 218145005, 654435015.

If you add them up, you will get the total of 654,435,494. Now subtract 654,435,015 to get 479,114,745