The factors of the number 3,413,760 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, 105, 112, 120, 127, 128, 140, 160, 168, 192, 210, 224, 240, 254, 256, 280, 320, 336, 381, 384, 420, 448, 480, 508, 560, 635, 640, 672, 762, 768, 840, 889, 896, 960, 1016, 1120, 1270, 1280, 1344, 1524, 1680, 1778, 1792, 1905, 1920, 2032, 2240, 2540, 2667, 2688, 3048, 3360, 3556, 3810, 3840, 4064, 4445, 4480, 5080, 5334, 5376, 6096, 6720, 7112, 7620, 8128, 8890, 8960, 10160, 10668, 12192, 13335, 13440, 14224, 15240, 16256, 17780, 20320, 21336, 24384, 26670, 26880, 28448, 30480, 32512, 35560, 40640, 42672, 48768, 53340, 56896, 60960, 71120, 81280, 85344, 97536, 106680, 113792, 121920, 142240, 162560, 170688, 213360, 227584, 243840, 284480, 341376, 426720, 487680, 568960, 682752, 853440, 1137920, 1706880, 3413760.
If you add them up, you will get the total of 12,558,336.