Q: What is the sum of all factors of the number 257,480 excluding 257,480?
A: 339,760
The factors of the number 257,480 are: 1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 157, 164, 205, 314, 328, 410, 628, 785, 820, 1256, 1570, 1640, 3140, 6280, 6437, 12874, 25748, 32185, 51496, 64370, 128740, 257480.
If you add them up, you will get the total of 257,819. Now subtract 257,480 to get 339,760