The factors of the number 280,345,600 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 128, 160, 188, 200, 233, 235, 256, 320, 376, 400, 466, 470, 512, 640, 752, 800, 932, 940, 1024, 1165, 1175, 1280, 1504, 1600, 1864, 1880, 2330, 2350, 2560, 3008, 3200, 3728, 3760, 4660, 4700, 5120, 5825, 6016, 6400, 7456, 7520, 9320, 9400, 10951, 11650, 12032, 12800, 14912, 15040, 18640, 18800, 21902, 23300, 24064, 25600, 29824, 30080, 37280, 37600, 43804, 46600, 48128, 54755, 59648, 60160, 74560, 75200, 87608, 93200, 109510, 119296, 120320, 149120, 150400, 175216, 186400, 219020, 238592, 240640, 273775, 298240, 300800, 350432, 372800, 438040, 547550, 596480, 601600, 700864, 745600, 876080, 1095100, 1192960, 1203200, 1401728, 1491200, 1752160, 2190200, 2803456, 2982400, 3504320, 4380400, 5606912, 5964800, 7008640, 8760800, 11213824, 14017280, 17521600, 28034560, 35043200, 56069120, 70086400, 140172800, 280345600.
If you add them up, you will get the total of 712,749,024.