Q: What is the sum of all factors of the number 1,257,680 excluding 1,257,680?
A: 1,718,320
The factors of the number 1,257,680 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 199, 316, 395, 398, 632, 790, 796, 995, 1264, 1580, 1592, 1990, 3160, 3184, 3980, 6320, 7960, 15721, 15920, 31442, 62884, 78605, 125768, 157210, 251536, 314420, 628840, 1257680.
If you add them up, you will get the total of 1,257,681. Now subtract 1,257,680 to get 1,718,320