The factors of the number 782,496 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 19, 22, 24, 26, 32, 33, 36, 38, 39, 44, 48, 52, 57, 66, 72, 76, 78, 88, 96, 99, 104, 114, 117, 132, 143, 144, 152, 156, 171, 176, 198, 208, 209, 228, 234, 247, 264, 286, 288, 304, 312, 342, 352, 396, 416, 418, 429, 456, 468, 494, 528, 572, 608, 624, 627, 684, 741, 792, 836, 858, 912, 936, 988, 1056, 1144, 1248, 1254, 1287, 1368, 1482, 1584, 1672, 1716, 1824, 1872, 1881, 1976, 2223, 2288, 2508, 2574, 2717, 2736, 2964, 3168, 3344, 3432, 3744, 3762, 3952, 4446, 4576, 5016, 5148, 5434, 5472, 5928, 6688, 6864, 7524, 7904, 8151, 8892, 10032, 10296, 10868, 11856, 13728, 15048, 16302, 17784, 20064, 20592, 21736, 23712, 24453, 30096, 32604, 35568, 41184, 43472, 48906, 60192, 65208, 71136, 86944, 97812, 130416, 195624, 260832, 391248, 782496.
If you add them up, you will get the total of 2,751,840.