Q: What is the sum of all factors of the number 640,035,123 excluding 640,035,123?
A: 412,134,093
The factors of the number 640,035,123 are: 1, 3, 7, 13, 21, 39, 91, 273, 677, 2031, 3463, 4739, 8801, 10389, 14217, 24241, 26403, 45019, 61607, 72723, 135057, 184821, 315133, 945399, 2344451, 7033353, 16411157, 30477863, 49233471, 91433589, 213345041, 640035123.
If you add them up, you will get the total of 640,035,535. Now subtract 640,035,123 to get 412,134,093