20798778545

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{2251}}^1\times {\mathrm{5119}}^1$

素因数の和:7413

約数の個数: 24

約数和(自身を含む): 26358128640

約数和(自身を除く): 5559350095

約数列:

[1, 5, 19, 95, 361, 1805, 2251, 5119, 11255, 25595, 42769, 97261, 213845, 486305, 812611, 1847959, 4063055, 9239795, 11522869, 57614345, 218934511, 1094672555, 4159755709, 20798778545]

約数ペア:

[(1, 20798778545), (5, 4159755709), (19, 1094672555), (95, 218934511), (361, 57614345), (1805, 11522869), (2251, 9239795), (5119, 4063055), (11255, 1847959), (25595, 812611), (42769, 486305), (97261, 213845)]