81219820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{369181}}^1$

素因数の和:369201

約数の個数: 24

約数和(自身を含む): 186067728

約数和(自身を除く): 104847908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 369181, 738362, 1476724, 1845905, 3691810, 4060991, 7383620, 8121982, 16243964, 20304955, 40609910, 81219820]

約数ペア:

[(1, 81219820), (2, 40609910), (4, 20304955), (5, 16243964), (10, 8121982), (11, 7383620), (20, 4060991), (22, 3691810), (44, 1845905), (55, 1476724), (110, 738362), (220, 369181)]