The factors of the number 25,598,040 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 183, 195, 244, 260, 269, 305, 312, 366, 390, 488, 520, 538, 610, 732, 780, 793, 807, 915, 1076, 1220, 1345, 1464, 1560, 1586, 1614, 1830, 2152, 2379, 2440, 2690, 3172, 3228, 3497, 3660, 3965, 4035, 4758, 5380, 6344, 6456, 6994, 7320, 7930, 8070, 9516, 10491, 10760, 11895, 13988, 15860, 16140, 16409, 17485, 19032, 20982, 23790, 27976, 31720, 32280, 32818, 34970, 41964, 47580, 49227, 52455, 65636, 69940, 82045, 83928, 95160, 98454, 104910, 131272, 139880, 164090, 196908, 209820, 213317, 246135, 328180, 393816, 419640, 426634, 492270, 639951, 656360, 853268, 984540, 1066585, 1279902, 1706536, 1969080, 2133170, 2559804, 3199755, 4266340, 5119608, 6399510, 8532680, 12799020, 25598040.
If you add them up, you will get the total of 84,369,600.