The factors of the number 1,691,760 are: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 53, 56, 57, 60, 70, 76, 80, 84, 95, 105, 106, 112, 114, 120, 133, 140, 152, 159, 168, 190, 210, 212, 228, 240, 265, 266, 280, 285, 304, 318, 336, 371, 380, 399, 420, 424, 456, 530, 532, 560, 570, 636, 665, 742, 760, 795, 798, 840, 848, 912, 1007, 1060, 1064, 1113, 1140, 1272, 1330, 1484, 1520, 1590, 1596, 1680, 1855, 1995, 2014, 2120, 2128, 2226, 2280, 2544, 2660, 2968, 3021, 3180, 3192, 3710, 3990, 4028, 4240, 4452, 4560, 5035, 5320, 5565, 5936, 6042, 6360, 6384, 7049, 7420, 7980, 8056, 8904, 10070, 10640, 11130, 12084, 12720, 14098, 14840, 15105, 15960, 16112, 17808, 20140, 21147, 22260, 24168, 28196, 29680, 30210, 31920, 35245, 40280, 42294, 44520, 48336, 56392, 60420, 70490, 80560, 84588, 89040, 105735, 112784, 120840, 140980, 169176, 211470, 241680, 281960, 338352, 422940, 563920, 845880, 1691760.
If you add them up, you will get the total of 6,428,160.