The factors of the number 688,677,210 are: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 29, 30, 39, 45, 58, 65, 78, 87, 90, 117, 130, 145, 174, 195, 234, 261, 290, 377, 390, 435, 522, 585, 754, 870, 1131, 1170, 1305, 1885, 2262, 2610, 3393, 3770, 5655, 6786, 11310, 16965, 20297, 33930, 40594, 60891, 101485, 121782, 182673, 202970, 263861, 304455, 365346, 527722, 588613, 608910, 791583, 913365, 1177226, 1319305, 1583166, 1765839, 1826730, 2374749, 2638610, 2943065, 3531678, 3957915, 4749498, 5297517, 5886130, 7651969, 7915830, 8829195, 10595034, 11873745, 15303938, 17658390, 22955907, 23747490, 26487585, 38259845, 45911814, 52975170, 68867721, 76519690, 114779535, 137735442, 229559070, 344338605, 688677210.
If you add them up, you will get the total of 1,994,887,440.