The factors of the number 7,129,980 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 277, 286, 330, 390, 396, 429, 468, 495, 554, 572, 585, 660, 715, 780, 831, 858, 990, 1108, 1170, 1287, 1385, 1430, 1662, 1716, 1980, 2145, 2340, 2493, 2574, 2770, 2860, 3047, 3324, 3601, 4155, 4290, 4986, 5148, 5540, 6094, 6435, 7202, 8310, 8580, 9141, 9972, 10803, 12188, 12465, 12870, 14404, 15235, 16620, 18005, 18282, 21606, 24930, 25740, 27423, 30470, 32409, 36010, 36564, 39611, 43212, 45705, 49860, 54015, 54846, 60940, 64818, 72020, 79222, 91410, 108030, 109692, 118833, 129636, 137115, 158444, 162045, 182820, 198055, 216060, 237666, 274230, 324090, 356499, 396110, 475332, 548460, 594165, 648180, 712998, 792220, 1188330, 1425996, 1782495, 2376660, 3564990, 7129980.
If you add them up, you will get the total of 7,129,998. Now subtract 7,129,980 to get 18,370,404