20490145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7331}}^1$

素因数の和:7392

約数の個数: 16

約数和(自身を含む): 27099072

約数和(自身を除く): 6608927

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7331, 36655, 95303, 315233, 476515, 1576165, 4098029, 20490145]

約数ペア:

[(1, 20490145), (5, 4098029), (13, 1576165), (43, 476515), (65, 315233), (215, 95303), (559, 36655), (2795, 7331)]