The factors of the number 1,303,680 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 97, 105, 112, 120, 128, 140, 160, 168, 192, 194, 210, 224, 240, 280, 291, 320, 336, 384, 388, 420, 448, 480, 485, 560, 582, 640, 672, 679, 776, 840, 896, 960, 970, 1120, 1164, 1344, 1358, 1455, 1552, 1680, 1920, 1940, 2037, 2240, 2328, 2688, 2716, 2910, 3104, 3360, 3395, 3880, 4074, 4480, 4656, 5432, 5820, 6208, 6720, 6790, 7760, 8148, 9312, 10185, 10864, 11640, 12416, 13440, 13580, 15520, 16296, 18624, 20370, 21728, 23280, 27160, 31040, 32592, 37248, 40740, 43456, 46560, 54320, 62080, 65184, 81480, 86912, 93120, 108640, 130368, 162960, 186240, 217280, 260736, 325920, 434560, 651840, 1303680.
If you add them up, you will get the total of 4,798,080.