20145575

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 26575680

約数和(自身を除く): 6430105

約数列:

[1, 5, 25, 29, 37, 145, 185, 725, 751, 925, 1073, 3755, 5365, 18775, 21779, 26825, 27787, 108895, 138935, 544475, 694675, 805823, 4029115, 20145575]

約数ペア:

[(1, 20145575), (5, 4029115), (25, 805823), (29, 694675), (37, 544475), (145, 138935), (185, 108895), (725, 27787), (751, 26825), (925, 21779), (1073, 18775), (3755, 5365)]