The factors of the number 1,499,520 are: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 71, 80, 88, 96, 110, 120, 128, 132, 142, 160, 165, 176, 192, 213, 220, 240, 264, 284, 320, 330, 352, 355, 384, 426, 440, 480, 528, 568, 640, 660, 704, 710, 781, 852, 880, 960, 1056, 1065, 1136, 1320, 1408, 1420, 1562, 1704, 1760, 1920, 2112, 2130, 2272, 2343, 2640, 2840, 3124, 3408, 3520, 3905, 4224, 4260, 4544, 4686, 5280, 5680, 6248, 6816, 7040, 7810, 8520, 9088, 9372, 10560, 11360, 11715, 12496, 13632, 15620, 17040, 18744, 21120, 22720, 23430, 24992, 27264, 31240, 34080, 37488, 45440, 46860, 49984, 62480, 68160, 74976, 93720, 99968, 124960, 136320, 149952, 187440, 249920, 299904, 374880, 499840, 749760, 1499520.
If you add them up, you will get the total of 1,499,523. Now subtract 1,499,520 to get 3,788,160