20017990075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{613}}^1\times {\mathrm{68749}}^1$

素因数の和:69391

約数の個数: 24

約数和(自身を含む): 26171750000

約数和(自身を除く): 6153759925

約数列:

[1, 5, 19, 25, 95, 475, 613, 3065, 11647, 15325, 58235, 68749, 291175, 343745, 1306231, 1718725, 6531155, 32655775, 42143137, 210715685, 800719603, 1053578425, 4003598015, 20017990075]

約数ペア:

[(1, 20017990075), (5, 4003598015), (19, 1053578425), (25, 800719603), (95, 210715685), (475, 42143137), (613, 32655775), (3065, 6531155), (11647, 1718725), (15325, 1306231), (58235, 343745), (68749, 291175)]