2021630225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{34721}}^1$

素因数の和:34885

約数の個数: 24

約数和(自身を含む): 2673732888

約数和(自身を除く): 652102663

約数列:

[1, 5, 17, 25, 85, 137, 425, 685, 2329, 3425, 11645, 34721, 58225, 173605, 590257, 868025, 2951285, 4756777, 14756425, 23783885, 80865209, 118919425, 404326045, 2021630225]

約数ペア:

[(1, 2021630225), (5, 404326045), (17, 118919425), (25, 80865209), (85, 23783885), (137, 14756425), (425, 4756777), (685, 2951285), (2329, 868025), (3425, 590257), (11645, 173605), (34721, 58225)]