20228455

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 27037152

約数和(自身を除く): 6808697

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 647, 845, 2405, 3235, 6253, 8411, 23939, 31265, 42055, 109343, 119695, 311207, 546715, 1556035, 4045691, 20228455]

約数ペア:

[(1, 20228455), (5, 4045691), (13, 1556035), (37, 546715), (65, 311207), (169, 119695), (185, 109343), (481, 42055), (647, 31265), (845, 23939), (2405, 8411), (3235, 6253)]