20120465525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{489847}}^1$

素因数の和:489941

約数の個数: 24

約数和(自身を含む): 26240177664

約数和(自身を除く): 6119712139

約数列:

[1, 5, 25, 31, 53, 155, 265, 775, 1325, 1643, 8215, 41075, 489847, 2449235, 12246175, 15185257, 25961891, 75926285, 129809455, 379631425, 649047275, 804818621, 4024093105, 20120465525]

約数ペア:

[(1, 20120465525), (5, 4024093105), (25, 804818621), (31, 649047275), (53, 379631425), (155, 129809455), (265, 75926285), (775, 25961891), (1325, 15185257), (1643, 12246175), (8215, 2449235), (41075, 489847)]