20275575

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6287}}^1$

素因数の和:6343

約数の個数: 24

約数和(自身を含む): 34307328

約数和(自身を除く): 14031753

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6287, 18861, 31435, 94305, 157175, 270341, 471525, 811023, 1351705, 4055115, 6758525, 20275575]

約数ペア:

[(1, 20275575), (3, 6758525), (5, 4055115), (15, 1351705), (25, 811023), (43, 471525), (75, 270341), (129, 157175), (215, 94305), (645, 31435), (1075, 18861), (3225, 6287)]