20778696

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2203}}^1$

素因数の和:2346

約数の個数: 48

約数和(自身を含む): 56730960

約数和(自身を除く): 35952264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2203, 2358, 3144, 4406, 4716, 6609, 8812, 9432, 13218, 17624, 19827, 26436, 39654, 52872, 79308, 158616, 288593, 577186, 865779, 1154372, 1731558, 2308744, 2597337, 3463116, 5194674, 6926232, 10389348, 20778696]

約数ペア:

[(1, 20778696), (2, 10389348), (3, 6926232), (4, 5194674), (6, 3463116), (8, 2597337), (9, 2308744), (12, 1731558), (18, 1154372), (24, 865779), (36, 577186), (72, 288593), (131, 158616), (262, 79308), (393, 52872), (524, 39654), (786, 26436), (1048, 19827), (1179, 17624), (1572, 13218), (2203, 9432), (2358, 8812), (3144, 6609), (4406, 4716)]