20354488

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27753032

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 173, 191, 308, 346, 382, 616, 692, 764, 1211, 1337, 1384, 1528, 1903, 2101, 2422, 2674, 3806, 4202, 4844, 5348, 7612, 8404, 9688, 10696, 13321, 14707, 15224, 16808, 26642, 29414, 33043, 53284, 58828, 66086, 106568, 117656, 132172, 231301, 264344, 363473, 462602, 726946, 925204, 1453892, 1850408, 2544311, 2907784, 5088622, 10177244, 20354488]

約数ペア:

[(1, 20354488), (2, 10177244), (4, 5088622), (7, 2907784), (8, 2544311), (11, 1850408), (14, 1453892), (22, 925204), (28, 726946), (44, 462602), (56, 363473), (77, 264344), (88, 231301), (154, 132172), (173, 117656), (191, 106568), (308, 66086), (346, 58828), (382, 53284), (616, 33043), (692, 29414), (764, 26642), (1211, 16808), (1337, 15224), (1384, 14707), (1528, 13321), (1903, 10696), (2101, 9688), (2422, 8404), (2674, 7612), (3806, 5348), (4202, 4844)]