The factors of the number 673,031,680 are: 1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 128, 137, 152, 160, 190, 202, 256, 274, 304, 320, 380, 404, 505, 512, 548, 608, 640, 685, 760, 808, 1010, 1096, 1216, 1280, 1370, 1520, 1616, 1919, 2020, 2192, 2432, 2560, 2603, 2740, 3040, 3232, 3838, 4040, 4384, 4864, 5206, 5480, 6080, 6464, 7676, 8080, 8768, 9595, 9728, 10412, 10960, 12160, 12928, 13015, 13837, 15352, 16160, 17536, 19190, 20824, 21920, 24320, 25856, 26030, 27674, 30704, 32320, 35072, 38380, 41648, 43840, 48640, 51712, 52060, 55348, 61408, 64640, 69185, 70144, 76760, 83296, 87680, 104120, 110696, 122816, 129280, 138370, 153520, 166592, 175360, 208240, 221392, 245632, 258560, 262903, 276740, 307040, 333184, 350720, 416480, 442784, 491264, 525806, 553480, 614080, 666368, 832960, 885568, 982528, 1051612, 1106960, 1228160, 1314515, 1332736, 1665920, 1771136, 2103224, 2213920, 2456320, 2629030, 3331840, 3542272, 4206448, 4427840, 4912640, 5258060, 6663680, 7084544, 8412896, 8855680, 10516120, 16825792, 17711360, 21032240, 33651584, 35422720, 42064480, 67303168, 84128960, 134606336, 168257920, 336515840, 673031680.
If you add them up, you will get the total of 1,727,969,760.