20425925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3697}}^1$

素因数の和:3737

約数の個数: 24

約数和(自身を含む): 28888776

約数和(自身を除く): 8462851

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3697, 5525, 18485, 48061, 62849, 92425, 240305, 314245, 817037, 1201525, 1571225, 4085185, 20425925]

約数ペア:

[(1, 20425925), (5, 4085185), (13, 1571225), (17, 1201525), (25, 817037), (65, 314245), (85, 240305), (221, 92425), (325, 62849), (425, 48061), (1105, 18485), (3697, 5525)]