Q: What is the sum of all factors of the number 640,424,036 including 640,424,036?

A: 1,308,443,136

Why is 1,308,443,136 the sum of all factors of 640,424,036, including 640,424,036?

The factors of the number 640,424,036 are: 1, 2, 4, 7, 14, 28, 73, 137, 146, 274, 292, 511, 548, 959, 1022, 1918, 2044, 2287, 3836, 4574, 9148, 10001, 16009, 20002, 32018, 40004, 64036, 70007, 140014, 166951, 280028, 313319, 333902, 626638, 667804, 1168657, 1253276, 2193233, 2337314, 4386466, 4674628, 8772932, 22872287, 45744574, 91489148, 160106009, 320212018, 640424036.

If you add them up, you will get the total of 1,308,443,136.