The factors of the number 18,428,480 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 433, 448, 532, 560, 608, 665, 760, 866, 1064, 1120, 1216, 1330, 1520, 1732, 2128, 2165, 2240, 2660, 3031, 3040, 3464, 4256, 4330, 5320, 6062, 6080, 6928, 8227, 8512, 8660, 10640, 12124, 13856, 15155, 16454, 17320, 21280, 24248, 27712, 30310, 32908, 34640, 41135, 42560, 48496, 57589, 60620, 65816, 69280, 82270, 96992, 115178, 121240, 131632, 138560, 164540, 193984, 230356, 242480, 263264, 287945, 329080, 460712, 484960, 526528, 575890, 658160, 921424, 969920, 1151780, 1316320, 1842848, 2303560, 2632640, 3685696, 4607120, 9214240, 18428480.
If you add them up, you will get the total of 52,913,280.