20218088870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{4451}}^1\times {\mathrm{64891}}^1$

素因数の和:69356

約数の個数: 32

約数和(自身を含む): 41601482496

約数和(自身を除く): 21383393626

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 4451, 8902, 22255, 31157, 44510, 62314, 64891, 129782, 155785, 311570, 324455, 454237, 648910, 908474, 2271185, 4542370, 288829841, 577659682, 1444149205, 2021808887, 2888298410, 4043617774, 10109044435, 20218088870]

約数ペア:

[(1, 20218088870), (2, 10109044435), (5, 4043617774), (7, 2888298410), (10, 2021808887), (14, 1444149205), (35, 577659682), (70, 288829841), (4451, 4542370), (8902, 2271185), (22255, 908474), (31157, 648910), (44510, 454237), (62314, 324455), (64891, 311570), (129782, 155785)]