The factors of the number 51,178,680 are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 115, 120, 126, 138, 140, 161, 168, 180, 184, 207, 210, 230, 252, 276, 280, 315, 322, 345, 360, 414, 420, 460, 483, 504, 552, 630, 644, 690, 805, 828, 840, 883, 920, 966, 1035, 1260, 1288, 1380, 1449, 1610, 1656, 1766, 1932, 2070, 2415, 2520, 2649, 2760, 2898, 3220, 3532, 3864, 4140, 4415, 4830, 5298, 5796, 6181, 6440, 7064, 7245, 7947, 8280, 8830, 9660, 10596, 11592, 12362, 13245, 14490, 15894, 17660, 18543, 19320, 20309, 21192, 24724, 26490, 28980, 30905, 31788, 35320, 37086, 39735, 40618, 49448, 52980, 55629, 57960, 60927, 61810, 63576, 74172, 79470, 81236, 92715, 101545, 105960, 111258, 121854, 123620, 142163, 148344, 158940, 162472, 182781, 185430, 203090, 222516, 243708, 247240, 278145, 284326, 304635, 317880, 365562, 370860, 406180, 426489, 445032, 487416, 556290, 568652, 609270, 710815, 731124, 741720, 812360, 852978, 913905, 1112580, 1137304, 1218540, 1279467, 1421630, 1462248, 1705956, 1827810, 2132445, 2225160, 2437080, 2558934, 2843260, 3411912, 3655620, 4264890, 5117868, 5686520, 6397335, 7311240, 8529780, 10235736, 12794670, 17059560, 25589340, 51178680.
If you add them up, you will get the total of 198,581,760.