18191140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7517}}^1$

素因数の和:7548

約数の個数: 36

約数和(自身を含む): 41995548

約数和(自身を除く): 23804408

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7517, 15034, 30068, 37585, 75170, 82687, 150340, 165374, 330748, 413435, 826870, 909557, 1653740, 1819114, 3638228, 4547785, 9095570, 18191140]

約数ペア:

[(1, 18191140), (2, 9095570), (4, 4547785), (5, 3638228), (10, 1819114), (11, 1653740), (20, 909557), (22, 826870), (44, 413435), (55, 330748), (110, 165374), (121, 150340), (220, 82687), (242, 75170), (484, 37585), (605, 30068), (1210, 15034), (2420, 7517)]