20217265156

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{389}}^1\times {\mathrm{643}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 39283433280

約数和(自身を除く): 19066168124

約数列:

[1, 2, 4, 11, 22, 44, 121, 167, 242, 334, 389, 484, 643, 668, 778, 1286, 1556, 1837, 2572, 3674, 4279, 7073, 7348, 8558, 14146, 17116, 20207, 28292, 40414, 47069, 64963, 77803, 80828, 94138, 107381, 129926, 155606, 188276, 214762, 250127, 259852, 311212, 429524, 500254, 714593, 1000508, 1181191, 1429186, 2362382, 2751397, 2858372, 4724764, 5502794, 7860523, 11005588, 12993101, 15721046, 25986202, 30265367, 31442092, 41771209, 51972404, 60530734, 83542418, 121061468, 167084836, 459483299, 918966598, 1837933196, 5054316289, 10108632578, 20217265156]

約数ペア:

[(1, 20217265156), (2, 10108632578), (4, 5054316289), (11, 1837933196), (22, 918966598), (44, 459483299), (121, 167084836), (167, 121061468), (242, 83542418), (334, 60530734), (389, 51972404), (484, 41771209), (643, 31442092), (668, 30265367), (778, 25986202), (1286, 15721046), (1556, 12993101), (1837, 11005588), (2572, 7860523), (3674, 5502794), (4279, 4724764), (7073, 2858372), (7348, 2751397), (8558, 2362382), (14146, 1429186), (17116, 1181191), (20207, 1000508), (28292, 714593), (40414, 500254), (47069, 429524), (64963, 311212), (77803, 259852), (80828, 250127), (94138, 214762), (107381, 188276), (129926, 155606)]