81377945

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{4339}}^1$

素因数の和:4397

約数の個数: 24

約数和(自身を含む): 110826240

約数和(自身を除く): 29448295

約数列:

[1, 5, 11, 31, 55, 121, 155, 341, 605, 1705, 3751, 4339, 18755, 21695, 47729, 134509, 238645, 525019, 672545, 1479599, 2625095, 7397995, 16275589, 81377945]

約数ペア:

[(1, 81377945), (5, 16275589), (11, 7397995), (31, 2625095), (55, 1479599), (121, 672545), (155, 525019), (341, 238645), (605, 134509), (1705, 47729), (3751, 21695), (4339, 18755)]