67885820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 146989920

約数和(自身を除く): 79104100

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 193, 215, 386, 409, 430, 772, 818, 860, 965, 1636, 1930, 2045, 3860, 4090, 8180, 8299, 16598, 17587, 33196, 35174, 41495, 70348, 78937, 82990, 87935, 157874, 165980, 175870, 315748, 351740, 394685, 789370, 1578740, 3394291, 6788582, 13577164, 16971455, 33942910, 67885820]

約数ペア:

[(1, 67885820), (2, 33942910), (4, 16971455), (5, 13577164), (10, 6788582), (20, 3394291), (43, 1578740), (86, 789370), (172, 394685), (193, 351740), (215, 315748), (386, 175870), (409, 165980), (430, 157874), (772, 87935), (818, 82990), (860, 78937), (965, 70348), (1636, 41495), (1930, 35174), (2045, 33196), (3860, 17587), (4090, 16598), (8180, 8299)]