19966060

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4177}}^1$

素因数の和:4425

約数の個数: 24

約数和(自身を含む): 42114240

約数和(自身を除く): 22148180

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4177, 4780, 8354, 16708, 20885, 41770, 83540, 998303, 1996606, 3993212, 4991515, 9983030, 19966060]

約数ペア:

[(1, 19966060), (2, 9983030), (4, 4991515), (5, 3993212), (10, 1996606), (20, 998303), (239, 83540), (478, 41770), (956, 20885), (1195, 16708), (2390, 8354), (4177, 4780)]