55778740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 121524480

約数和(自身を除く): 65745740

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 821, 860, 1580, 1642, 3284, 3397, 4105, 6794, 8210, 13588, 16420, 16985, 33970, 35303, 64859, 67940, 70606, 129718, 141212, 176515, 259436, 324295, 353030, 648590, 706060, 1297180, 2788937, 5577874, 11155748, 13944685, 27889370, 55778740]

約数ペア:

[(1, 55778740), (2, 27889370), (4, 13944685), (5, 11155748), (10, 5577874), (20, 2788937), (43, 1297180), (79, 706060), (86, 648590), (158, 353030), (172, 324295), (215, 259436), (316, 176515), (395, 141212), (430, 129718), (790, 70606), (821, 67940), (860, 64859), (1580, 35303), (1642, 33970), (3284, 16985), (3397, 16420), (4105, 13588), (6794, 8210)]