The factors of the number 1,712,256 are: 1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 49, 52, 56, 64, 78, 84, 91, 96, 98, 104, 112, 128, 147, 156, 168, 182, 192, 196, 208, 224, 273, 294, 312, 336, 343, 364, 384, 392, 416, 448, 546, 588, 624, 637, 672, 686, 728, 784, 832, 896, 1029, 1092, 1176, 1248, 1274, 1344, 1372, 1456, 1568, 1664, 1911, 2058, 2184, 2352, 2496, 2548, 2688, 2744, 2912, 3136, 3822, 4116, 4368, 4459, 4704, 4992, 5096, 5488, 5824, 6272, 7644, 8232, 8736, 8918, 9408, 10192, 10976, 11648, 13377, 15288, 16464, 17472, 17836, 18816, 20384, 21952, 26754, 30576, 32928, 34944, 35672, 40768, 43904, 53508, 61152, 65856, 71344, 81536, 107016, 122304, 131712, 142688, 214032, 244608, 285376, 428064, 570752, 856128, 1712256.
If you add them up, you will get the total of 1,712,259. Now subtract 1,712,256 to get 3,999,744