64805140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{111733}}^1$

素因数の和:111771

約数の個数: 24

約数和(自身を含む): 140784840

約数和(自身を除く): 75979700

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 111733, 223466, 446932, 558665, 1117330, 2234660, 3240257, 6480514, 12961028, 16201285, 32402570, 64805140]

約数ペア:

[(1, 64805140), (2, 32402570), (4, 16201285), (5, 12961028), (10, 6480514), (20, 3240257), (29, 2234660), (58, 1117330), (116, 558665), (145, 446932), (290, 223466), (580, 111733)]