215208120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:469

約数の個数: 128

約数和(自身を含む): 667180800

約数和(自身を除く): 451972680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 179, 215, 233, 258, 344, 358, 430, 466, 516, 537, 645, 699, 716, 860, 895, 932, 1032, 1074, 1165, 1290, 1398, 1432, 1720, 1790, 1864, 2148, 2330, 2580, 2685, 2796, 3495, 3580, 4296, 4660, 5160, 5370, 5592, 6990, 7160, 7697, 9320, 10019, 10740, 13980, 15394, 20038, 21480, 23091, 27960, 30057, 30788, 38485, 40076, 41707, 46182, 50095, 60114, 61576, 76970, 80152, 83414, 92364, 100190, 115455, 120228, 125121, 150285, 153940, 166828, 184728, 200380, 208535, 230910, 240456, 250242, 300570, 307880, 333656, 400760, 417070, 461820, 500484, 601140, 625605, 834140, 923640, 1000968, 1202280, 1251210, 1668280, 1793401, 2502420, 3586802, 5004840, 5380203, 7173604, 8967005, 10760406, 14347208, 17934010, 21520812, 26901015, 35868020, 43041624, 53802030, 71736040, 107604060, 215208120]

約数ペア:

[(1, 215208120), (2, 107604060), (3, 71736040), (4, 53802030), (5, 43041624), (6, 35868020), (8, 26901015), (10, 21520812), (12, 17934010), (15, 14347208), (20, 10760406), (24, 8967005), (30, 7173604), (40, 5380203), (43, 5004840), (60, 3586802), (86, 2502420), (120, 1793401), (129, 1668280), (172, 1251210), (179, 1202280), (215, 1000968), (233, 923640), (258, 834140), (344, 625605), (358, 601140), (430, 500484), (466, 461820), (516, 417070), (537, 400760), (645, 333656), (699, 307880), (716, 300570), (860, 250242), (895, 240456), (932, 230910), (1032, 208535), (1074, 200380), (1165, 184728), (1290, 166828), (1398, 153940), (1432, 150285), (1720, 125121), (1790, 120228), (1864, 115455), (2148, 100190), (2330, 92364), (2580, 83414), (2685, 80152), (2796, 76970), (3495, 61576), (3580, 60114), (4296, 50095), (4660, 46182), (5160, 41707), (5370, 40076), (5592, 38485), (6990, 30788), (7160, 30057), (7697, 27960), (9320, 23091), (10019, 21480), (10740, 20038), (13980, 15394)]