20160957640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{89477}}^1$

素因数の和:89662

約数の個数: 64

約数和(自身を含む): 46771940160

約数和(自身を除く): 26610982520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 131, 172, 215, 262, 344, 430, 524, 655, 860, 1048, 1310, 1720, 2620, 5240, 5633, 11266, 22532, 28165, 45064, 56330, 89477, 112660, 178954, 225320, 357908, 447385, 715816, 894770, 1789540, 3579080, 3847511, 7695022, 11721487, 15390044, 19237555, 23442974, 30780088, 38475110, 46885948, 58607435, 76950220, 93771896, 117214870, 153900440, 234429740, 468859480, 504023941, 1008047882, 2016095764, 2520119705, 4032191528, 5040239410, 10080478820, 20160957640]

約数ペア:

[(1, 20160957640), (2, 10080478820), (4, 5040239410), (5, 4032191528), (8, 2520119705), (10, 2016095764), (20, 1008047882), (40, 504023941), (43, 468859480), (86, 234429740), (131, 153900440), (172, 117214870), (215, 93771896), (262, 76950220), (344, 58607435), (430, 46885948), (524, 38475110), (655, 30780088), (860, 23442974), (1048, 19237555), (1310, 15390044), (1720, 11721487), (2620, 7695022), (5240, 3847511), (5633, 3579080), (11266, 1789540), (22532, 894770), (28165, 715816), (45064, 447385), (56330, 357908), (89477, 225320), (112660, 178954)]