Q: What is the sum of all factors of the number 641,440 excluding 641,440?
A: 961,280
The factors of the number 641,440 are: 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 211, 304, 380, 422, 608, 760, 844, 1055, 1520, 1688, 2110, 3040, 3376, 4009, 4220, 6752, 8018, 8440, 16036, 16880, 20045, 32072, 33760, 40090, 64144, 80180, 128288, 160360, 320720, 641440.
If you add them up, you will get the total of 642,401. Now subtract 641,440 to get 961,280