20478522056

素因数分解:

$2^3\times {\mathrm{971}}^1\times {\mathrm{1031}}^1\times {\mathrm{2557}}^1$

素因数の和:4565

約数の個数: 32

約数和(自身を含む): 38489100480

約数和(自身を除く): 18010578424

約数列:

[1, 2, 4, 8, 971, 1031, 1942, 2062, 2557, 3884, 4124, 5114, 7768, 8248, 10228, 20456, 1001101, 2002202, 2482847, 2636267, 4004404, 4965694, 5272534, 8008808, 9931388, 10545068, 19862776, 21090136, 2559815257, 5119630514, 10239261028, 20478522056]

約数ペア:

[(1, 20478522056), (2, 10239261028), (4, 5119630514), (8, 2559815257), (971, 21090136), (1031, 19862776), (1942, 10545068), (2062, 9931388), (2557, 8008808), (3884, 5272534), (4124, 4965694), (5114, 4004404), (7768, 2636267), (8248, 2482847), (10228, 2002202), (20456, 1001101)]