20399950

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{11027}}^1$

素因数の和:11076

約数の個数: 24

約数和(自身を含む): 38972952

約数和(自身を除く): 18573002

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850, 11027, 22054, 55135, 110270, 275675, 407999, 551350, 815998, 2039995, 4079990, 10199975, 20399950]

約数ペア:

[(1, 20399950), (2, 10199975), (5, 4079990), (10, 2039995), (25, 815998), (37, 551350), (50, 407999), (74, 275675), (185, 110270), (370, 55135), (925, 22054), (1850, 11027)]