77979640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{45337}}^1$

素因数の和:45391

約数の個数: 32

約数和(自身を含む): 179538480

約数和(自身を除く): 101558840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 45337, 90674, 181348, 226685, 362696, 453370, 906740, 1813480, 1949491, 3898982, 7797964, 9747455, 15595928, 19494910, 38989820, 77979640]

約数ペア:

[(1, 77979640), (2, 38989820), (4, 19494910), (5, 15595928), (8, 9747455), (10, 7797964), (20, 3898982), (40, 1949491), (43, 1813480), (86, 906740), (172, 453370), (215, 362696), (344, 226685), (430, 181348), (860, 90674), (1720, 45337)]