27828740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32359}}^1$

素因数の和:32411

約数の個数: 24

約数和(自身を含む): 59801280

約数和(自身を除く): 31972540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 32359, 64718, 129436, 161795, 323590, 647180, 1391437, 2782874, 5565748, 6957185, 13914370, 27828740]

約数ペア:

[(1, 27828740), (2, 13914370), (4, 6957185), (5, 5565748), (10, 2782874), (20, 1391437), (43, 647180), (86, 323590), (172, 161795), (215, 129436), (430, 64718), (860, 32359)]