Q: What is the sum of all factors of the number 640,770 excluding 640,770?
A: 1,101,054
The factors of the number 640,770 are: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 53, 62, 65, 78, 93, 106, 130, 155, 159, 186, 195, 265, 310, 318, 390, 403, 465, 530, 689, 795, 806, 930, 1209, 1378, 1590, 1643, 2015, 2067, 2418, 3286, 3445, 4030, 4134, 4929, 6045, 6890, 8215, 9858, 10335, 12090, 16430, 20670, 21359, 24645, 42718, 49290, 64077, 106795, 128154, 213590, 320385, 640770.
If you add them up, you will get the total of 640,771. Now subtract 640,770 to get 1,101,054