20916270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{839}}^1$

素因数の和:1129

約数の個数: 48

約数和(自身を含む): 54643680

約数和(自身を除く): 33727410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 277, 554, 831, 839, 1385, 1662, 1678, 2493, 2517, 2770, 4155, 4195, 4986, 5034, 7551, 8310, 8390, 12465, 12585, 15102, 24930, 25170, 37755, 75510, 232403, 464806, 697209, 1162015, 1394418, 2091627, 2324030, 3486045, 4183254, 6972090, 10458135, 20916270]

約数ペア:

[(1, 20916270), (2, 10458135), (3, 6972090), (5, 4183254), (6, 3486045), (9, 2324030), (10, 2091627), (15, 1394418), (18, 1162015), (30, 697209), (45, 464806), (90, 232403), (277, 75510), (554, 37755), (831, 25170), (839, 24930), (1385, 15102), (1662, 12585), (1678, 12465), (2493, 8390), (2517, 8310), (2770, 7551), (4155, 5034), (4195, 4986)]