The factors of the number 15,731,760 are: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 59, 60, 66, 80, 88, 101, 110, 118, 120, 132, 165, 176, 177, 202, 220, 236, 240, 264, 295, 303, 330, 354, 404, 440, 472, 505, 528, 590, 606, 649, 660, 708, 808, 880, 885, 944, 1010, 1111, 1180, 1212, 1298, 1320, 1416, 1515, 1616, 1770, 1947, 2020, 2222, 2360, 2424, 2596, 2640, 2832, 3030, 3245, 3333, 3540, 3894, 4040, 4444, 4720, 4848, 5192, 5555, 5959, 6060, 6490, 6666, 7080, 7788, 8080, 8888, 9735, 10384, 11110, 11918, 12120, 12980, 13332, 14160, 15576, 16665, 17776, 17877, 19470, 22220, 23836, 24240, 25960, 26664, 29795, 31152, 33330, 35754, 38940, 44440, 47672, 51920, 53328, 59590, 65549, 66660, 71508, 77880, 88880, 89385, 95344, 119180, 131098, 133320, 143016, 155760, 178770, 196647, 238360, 262196, 266640, 286032, 327745, 357540, 393294, 476720, 524392, 655490, 715080, 786588, 983235, 1048784, 1310980, 1430160, 1573176, 1966470, 2621960, 3146352, 3932940, 5243920, 7865880, 15731760.
If you add them up, you will get the total of 54,639,360.