Q: What is the sum of all factors of the number 67,377,780 excluding 67,377,780?

A: 137,002,032

Why is 137,002,032 the sum of all factors of 67,377,780, excluding 67,377,780?

The factors of the number 67,377,780 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 374321, 748642, 1122963, 1497284, 1871605, 2245926, 3368889, 3743210, 4491852, 5614815, 6737778, 7486420, 11229630, 13475556, 16844445, 22459260, 33688890, 67377780.

If you add them up, you will get the total of 67,377,917. Now subtract 67,377,780 to get 137,002,032