Q: What is the sum of all factors of the number 400,140,324 excluding 400,140,324?

A: 648,789,740

Why is 648,789,740 the sum of all factors of 400,140,324, excluding 400,140,324?

The factors of the number 400,140,324 are: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 411667, 823334, 1235001, 1646668, 2470002, 3705003, 4940004, 7410006, 11115009, 14820012, 22230018, 33345027, 44460036, 66690054, 100035081, 133380108, 200070162, 400140324.

If you add them up, you will get the total of 400,140,972. Now subtract 400,140,324 to get 648,789,740