81985420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{372661}}^1$

素因数の和:372681

約数の個数: 24

約数和(自身を含む): 187821648

約数和(自身を除く): 105836228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 372661, 745322, 1490644, 1863305, 3726610, 4099271, 7453220, 8198542, 16397084, 20496355, 40992710, 81985420]

約数ペア:

[(1, 81985420), (2, 40992710), (4, 20496355), (5, 16397084), (10, 8198542), (11, 7453220), (20, 4099271), (22, 3726610), (44, 1863305), (55, 1490644), (110, 745322), (220, 372661)]