Q: What is the sum of all factors of the number 1,287,420 excluding 1,287,420?
A: 2,408,580
The factors of the number 1,287,420 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 499, 516, 645, 860, 998, 1290, 1497, 1996, 2495, 2580, 2994, 4990, 5988, 7485, 9980, 14970, 21457, 29940, 42914, 64371, 85828, 107285, 128742, 214570, 257484, 321855, 429140, 643710, 1287420.
If you add them up, you will get the total of 1,287,422. Now subtract 1,287,420 to get 2,408,580