20163511520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1774957}}^1$

素因数の和:1775043

約数の個数: 48

約数和(自身を含む): 48307256928

約数和(自身を除く): 28143745408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 1774957, 3549914, 7099828, 8874785, 14199656, 17749570, 28399312, 35499140, 56798624, 70998280, 126021947, 141996560, 252043894, 283993120, 504087788, 630109735, 1008175576, 1260219470, 2016351152, 2520438940, 4032702304, 5040877880, 10081755760, 20163511520]

約数ペア:

[(1, 20163511520), (2, 10081755760), (4, 5040877880), (5, 4032702304), (8, 2520438940), (10, 2016351152), (16, 1260219470), (20, 1008175576), (32, 630109735), (40, 504087788), (71, 283993120), (80, 252043894), (142, 141996560), (160, 126021947), (284, 70998280), (355, 56798624), (568, 35499140), (710, 28399312), (1136, 17749570), (1420, 14199656), (2272, 8874785), (2840, 7099828), (5680, 3549914), (11360, 1774957)]