Q: What is the sum of all factors of the number 401,720,418 excluding 401,720,418?

A: 572,148,702

Why is 572,148,702 the sum of all factors of 401,720,418, excluding 401,720,418?

The factors of the number 401,720,418 are: 1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 198, 297, 594, 676297, 1352594, 2028891, 4057782, 6086673, 7439267, 12173346, 14878534, 18260019, 22317801, 36520038, 44635602, 66953403, 133906806, 200860209, 401720418.

If you add them up, you will get the total of 401,720,990. Now subtract 401,720,418 to get 572,148,702