Q: What is the sum of all factors of the number 640,456 excluding 640,456?
A: 569,144
The factors of the number 640,456 are: 1, 2, 4, 8, 223, 359, 446, 718, 892, 1436, 1784, 2872, 80057, 160114, 320228, 640456.
If you add them up, you will get the total of 641,025. Now subtract 640,456 to get 569,144