81731276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{911}}^1\times {\mathrm{2039}}^1$

素因数の和:2965

約数の個数: 24

約数和(自身を含む): 156280320

約数和(自身を除く): 74549044

約数列:

[1, 2, 4, 11, 22, 44, 911, 1822, 2039, 3644, 4078, 8156, 10021, 20042, 22429, 40084, 44858, 89716, 1857529, 3715058, 7430116, 20432819, 40865638, 81731276]

約数ペア:

[(1, 81731276), (2, 40865638), (4, 20432819), (11, 7430116), (22, 3715058), (44, 1857529), (911, 89716), (1822, 44858), (2039, 40084), (3644, 22429), (4078, 20042), (8156, 10021)]