81688310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67511}}^1$

素因数の和:67540

約数の個数: 24

約数和(自身を含む): 161623728

約数和(自身を除く): 79935418

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 67511, 135022, 337555, 675110, 742621, 1485242, 3713105, 7426210, 8168831, 16337662, 40844155, 81688310]

約数ペア:

[(1, 81688310), (2, 40844155), (5, 16337662), (10, 8168831), (11, 7426210), (22, 3713105), (55, 1485242), (110, 742621), (121, 675110), (242, 337555), (605, 135022), (1210, 67511)]