20156344544

素因数分解:

$2^5\times 7^1\times {\mathrm{409}}^1\times {\mathrm{220009}}^1$

素因数の和:220435

約数の個数: 48

約数和(自身を含む): 45462866400

約数和(自身を除く): 25306521856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 409, 818, 1636, 2863, 3272, 5726, 6544, 11452, 13088, 22904, 45808, 91616, 220009, 440018, 880036, 1540063, 1760072, 3080126, 3520144, 6160252, 7040288, 12320504, 24641008, 49282016, 89983681, 179967362, 359934724, 629885767, 719869448, 1259771534, 1439738896, 2519543068, 2879477792, 5039086136, 10078172272, 20156344544]

約数ペア:

[(1, 20156344544), (2, 10078172272), (4, 5039086136), (7, 2879477792), (8, 2519543068), (14, 1439738896), (16, 1259771534), (28, 719869448), (32, 629885767), (56, 359934724), (112, 179967362), (224, 89983681), (409, 49282016), (818, 24641008), (1636, 12320504), (2863, 7040288), (3272, 6160252), (5726, 3520144), (6544, 3080126), (11452, 1760072), (13088, 1540063), (22904, 880036), (45808, 440018), (91616, 220009)]