289947020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1317941}}^1$

素因数の和:1317961

約数の個数: 24

約数和(自身を含む): 664242768

約数和(自身を除く): 374295748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1317941, 2635882, 5271764, 6589705, 13179410, 14497351, 26358820, 28994702, 57989404, 72486755, 144973510, 289947020]

約数ペア:

[(1, 289947020), (2, 144973510), (4, 72486755), (5, 57989404), (10, 28994702), (11, 26358820), (20, 14497351), (22, 13179410), (44, 6589705), (55, 5271764), (110, 2635882), (220, 1317941)]