The factors of the number 767,502,720 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 285, 288, 304, 320, 342, 360, 380, 384, 456, 480, 570, 576, 608, 640, 684, 720, 760, 855, 912, 960, 1140, 1152, 1216, 1368, 1440, 1520, 1710, 1824, 1920, 2280, 2432, 2736, 2880, 3040, 3420, 3648, 4560, 5472, 5760, 6080, 6840, 7013, 7296, 9120, 10944, 12160, 13680, 14026, 18240, 21039, 21888, 27360, 28052, 35065, 36480, 42078, 54720, 56104, 63117, 70130, 84156, 105195, 109440, 112208, 126234, 133247, 140260, 168312, 210390, 224416, 252468, 266494, 280520, 315585, 336624, 399741, 420780, 448832, 504936, 532988, 561040, 631170, 666235, 673248, 799482, 841560, 897664, 1009872, 1065976, 1122080, 1199223, 1262340, 1332470, 1346496, 1598964, 1683120, 1998705, 2019744, 2131952, 2244160, 2398446, 2524680, 2664940, 2692992, 3197928, 3366240, 3997410, 4039488, 4263904, 4488320, 4796892, 5049360, 5329880, 5996115, 6395856, 6732480, 7994820, 8078976, 8527808, 9593784, 10098720, 10659760, 11992230, 12791712, 13464960, 15989640, 17055616, 19187568, 20197440, 21319520, 23984460, 25583424, 31979280, 38375136, 40394880, 42639040, 47968920, 51166848, 63958560, 76750272, 85278080, 95937840, 127917120, 153500544, 191875680, 255834240, 383751360, 767502720.
If you add them up, you will get the total of 2,790,169,200.