20090179640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11680337}}^1$

素因数の和:11680391

約数の個数: 32

約数和(自身を含む): 46254138480

約数和(自身を除く): 26163958840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11680337, 23360674, 46721348, 58401685, 93442696, 116803370, 233606740, 467213480, 502254491, 1004508982, 2009017964, 2511272455, 4018035928, 5022544910, 10045089820, 20090179640]

約数ペア:

[(1, 20090179640), (2, 10045089820), (4, 5022544910), (5, 4018035928), (8, 2511272455), (10, 2009017964), (20, 1004508982), (40, 502254491), (43, 467213480), (86, 233606740), (172, 116803370), (215, 93442696), (344, 58401685), (430, 46721348), (860, 23360674), (1720, 11680337)]