20368575

素因数分解:

$3^2\times 5^2\times {\mathrm{90527}}^1$

素因数の和:90543

約数の個数: 18

約数和(自身を含む): 36482784

約数和(自身を除く): 16114209

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90527, 271581, 452635, 814743, 1357905, 2263175, 4073715, 6789525, 20368575]

約数ペア:

[(1, 20368575), (3, 6789525), (5, 4073715), (9, 2263175), (15, 1357905), (25, 814743), (45, 452635), (75, 271581), (225, 90527)]