Q: What is the sum of all factors of the number 78,261,075 excluding 78,261,075?

A: 65,190,805

Why is 65,190,805 the sum of all factors of 78,261,075, excluding 78,261,075?

The factors of the number 78,261,075 are: 1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 3225, 8089, 9675, 24267, 40445, 72801, 121335, 202225, 347827, 364005, 606675, 1043481, 1739135, 1820025, 3130443, 5217405, 8695675, 15652215, 26087025, 78261075.

If you add them up, you will get the total of 78,261,140. Now subtract 78,261,075 to get 65,190,805