The factors of the number 12,135,420 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 227, 243, 270, 297, 324, 330, 396, 405, 454, 486, 495, 540, 594, 660, 681, 810, 891, 908, 972, 990, 1135, 1188, 1215, 1362, 1485, 1620, 1782, 1980, 2043, 2270, 2430, 2497, 2673, 2724, 2970, 3405, 3564, 4086, 4455, 4540, 4860, 4994, 5346, 5940, 6129, 6810, 7491, 8172, 8910, 9988, 10215, 10692, 12258, 12485, 13365, 13620, 14982, 17820, 18387, 20430, 22473, 24516, 24970, 26730, 29964, 30645, 36774, 37455, 40860, 44946, 49940, 53460, 55161, 61290, 67419, 73548, 74910, 89892, 91935, 110322, 112365, 122580, 134838, 149820, 183870, 202257, 220644, 224730, 269676, 275805, 337095, 367740, 404514, 449460, 551610, 606771, 674190, 809028, 1011285, 1103220, 1213542, 1348380, 2022570, 2427084, 3033855, 4045140, 6067710, 12135420.
If you add them up, you will get the total of 41,827,968.