The factors of the number 8,720,400 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 43, 48, 50, 52, 60, 65, 75, 78, 80, 86, 100, 104, 120, 129, 130, 150, 156, 169, 172, 195, 200, 208, 215, 240, 258, 260, 300, 312, 325, 338, 344, 390, 400, 430, 507, 516, 520, 559, 600, 624, 645, 650, 676, 688, 780, 845, 860, 975, 1014, 1032, 1040, 1075, 1118, 1200, 1290, 1300, 1352, 1560, 1677, 1690, 1720, 1950, 2028, 2064, 2150, 2236, 2535, 2580, 2600, 2704, 2795, 3120, 3225, 3354, 3380, 3440, 3900, 4056, 4225, 4300, 4472, 5070, 5160, 5200, 5590, 6450, 6708, 6760, 7267, 7800, 8112, 8385, 8450, 8600, 8944, 10140, 10320, 11180, 12675, 12900, 13416, 13520, 13975, 14534, 15600, 16770, 16900, 17200, 20280, 21801, 22360, 25350, 25800, 26832, 27950, 29068, 33540, 33800, 36335, 40560, 41925, 43602, 44720, 50700, 51600, 55900, 58136, 67080, 67600, 72670, 83850, 87204, 101400, 109005, 111800, 116272, 134160, 145340, 167700, 174408, 181675, 202800, 218010, 223600, 290680, 335400, 348816, 363350, 436020, 545025, 581360, 670800, 726700, 872040, 1090050, 1453400, 1744080, 2180100, 2906800, 4360200, 8720400.
If you add them up, you will get the total of 8,720,422. Now subtract 8,720,400 to get 22,231,488