20520276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1279}}^1$

素因数の和:1484

約数の個数: 48

約数和(自身を含む): 55050240

約数和(自身を除く): 34529964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 191, 382, 573, 764, 1146, 1279, 1337, 2292, 2558, 2674, 3837, 4011, 5116, 5348, 7674, 8022, 8953, 15348, 16044, 17906, 26859, 35812, 53718, 107436, 244289, 488578, 732867, 977156, 1465734, 1710023, 2931468, 3420046, 5130069, 6840092, 10260138, 20520276]

約数ペア:

[(1, 20520276), (2, 10260138), (3, 6840092), (4, 5130069), (6, 3420046), (7, 2931468), (12, 1710023), (14, 1465734), (21, 977156), (28, 732867), (42, 488578), (84, 244289), (191, 107436), (382, 53718), (573, 35812), (764, 26859), (1146, 17906), (1279, 16044), (1337, 15348), (2292, 8953), (2558, 8022), (2674, 7674), (3837, 5348), (4011, 5116)]