81385810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67261}}^1$

素因数の和:67290

約数の個数: 24

約数和(自身を含む): 161025228

約数和(自身を除く): 79639418

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 67261, 134522, 336305, 672610, 739871, 1479742, 3699355, 7398710, 8138581, 16277162, 40692905, 81385810]

約数ペア:

[(1, 81385810), (2, 40692905), (5, 16277162), (10, 8138581), (11, 7398710), (22, 3699355), (55, 1479742), (110, 739871), (121, 672610), (242, 336305), (605, 134522), (1210, 67261)]