216661480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:387

約数の個数: 128

約数和(自身を含む): 582912000

約数和(自身を除く): 366250520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 109, 124, 140, 155, 217, 218, 229, 248, 280, 310, 434, 436, 458, 545, 620, 763, 868, 872, 916, 1085, 1090, 1145, 1240, 1526, 1603, 1736, 1832, 2170, 2180, 2290, 3052, 3206, 3379, 3815, 4340, 4360, 4580, 6104, 6412, 6758, 7099, 7630, 8015, 8680, 9160, 12824, 13516, 14198, 15260, 16030, 16895, 23653, 24961, 27032, 28396, 30520, 32060, 33790, 35495, 47306, 49693, 49922, 56792, 64120, 67580, 70990, 94612, 99386, 99844, 118265, 124805, 135160, 141980, 174727, 189224, 198772, 199688, 236530, 248465, 249610, 283960, 349454, 397544, 473060, 496930, 499220, 698908, 773791, 873635, 946120, 993860, 998440, 1397816, 1547582, 1747270, 1987720, 3095164, 3494540, 3868955, 5416537, 6190328, 6989080, 7737910, 10833074, 15475820, 21666148, 27082685, 30951640, 43332296, 54165370, 108330740, 216661480]

約数ペア:

[(1, 216661480), (2, 108330740), (4, 54165370), (5, 43332296), (7, 30951640), (8, 27082685), (10, 21666148), (14, 15475820), (20, 10833074), (28, 7737910), (31, 6989080), (35, 6190328), (40, 5416537), (56, 3868955), (62, 3494540), (70, 3095164), (109, 1987720), (124, 1747270), (140, 1547582), (155, 1397816), (217, 998440), (218, 993860), (229, 946120), (248, 873635), (280, 773791), (310, 698908), (434, 499220), (436, 496930), (458, 473060), (545, 397544), (620, 349454), (763, 283960), (868, 249610), (872, 248465), (916, 236530), (1085, 199688), (1090, 198772), (1145, 189224), (1240, 174727), (1526, 141980), (1603, 135160), (1736, 124805), (1832, 118265), (2170, 99844), (2180, 99386), (2290, 94612), (3052, 70990), (3206, 67580), (3379, 64120), (3815, 56792), (4340, 49922), (4360, 49693), (4580, 47306), (6104, 35495), (6412, 33790), (6758, 32060), (7099, 30520), (7630, 28396), (8015, 27032), (8680, 24961), (9160, 23653), (12824, 16895), (13516, 16030), (14198, 15260)]