The factors of the number 1,705,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 19, 20, 22, 24, 30, 32, 33, 34, 38, 40, 44, 48, 51, 55, 57, 60, 66, 68, 76, 80, 85, 88, 95, 96, 102, 110, 114, 120, 132, 136, 152, 160, 165, 170, 176, 187, 190, 204, 209, 220, 228, 240, 255, 264, 272, 285, 304, 323, 330, 340, 352, 374, 380, 408, 418, 440, 456, 480, 510, 528, 544, 561, 570, 608, 627, 646, 660, 680, 748, 760, 816, 836, 880, 912, 935, 969, 1020, 1045, 1056, 1122, 1140, 1254, 1292, 1320, 1360, 1496, 1520, 1615, 1632, 1672, 1760, 1824, 1870, 1938, 2040, 2090, 2244, 2280, 2508, 2584, 2640, 2720, 2805, 2992, 3040, 3135, 3230, 3344, 3553, 3740, 3876, 4080, 4180, 4488, 4560, 4845, 5016, 5168, 5280, 5610, 5984, 6270, 6460, 6688, 7106, 7480, 7752, 8160, 8360, 8976, 9120, 9690, 10032, 10336, 10659, 11220, 12540, 12920, 14212, 14960, 15504, 16720, 17765, 17952, 19380, 20064, 21318, 22440, 25080, 25840, 28424, 29920, 31008, 33440, 35530, 38760, 42636, 44880, 50160, 51680, 53295, 56848, 71060, 77520, 85272, 89760, 100320, 106590, 113696, 142120, 155040, 170544, 213180, 284240, 341088, 426360, 568480, 852720, 1705440.
If you add them up, you will get the total of 6,531,840.