The factors of the number 1,500,720 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 37, 39, 40, 48, 52, 60, 65, 74, 78, 80, 104, 111, 120, 130, 148, 156, 169, 185, 195, 208, 222, 240, 260, 296, 312, 338, 370, 390, 444, 481, 507, 520, 555, 592, 624, 676, 740, 780, 845, 888, 962, 1014, 1040, 1110, 1352, 1443, 1480, 1560, 1690, 1776, 1924, 2028, 2220, 2405, 2535, 2704, 2886, 2960, 3120, 3380, 3848, 4056, 4440, 4810, 5070, 5772, 6253, 6760, 7215, 7696, 8112, 8880, 9620, 10140, 11544, 12506, 13520, 14430, 18759, 19240, 20280, 23088, 25012, 28860, 31265, 37518, 38480, 40560, 50024, 57720, 62530, 75036, 93795, 100048, 115440, 125060, 150072, 187590, 250120, 300144, 375180, 500240, 750360, 1500720.
If you add them up, you will get the total of 1,500,723. Now subtract 1,500,720 to get 3,673,056