20526520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73309}}^1$

素因数の和:73327

約数の個数: 32

約数和(自身を含む): 52783200

約数和(自身を除く): 32256680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73309, 146618, 293236, 366545, 513163, 586472, 733090, 1026326, 1466180, 2052652, 2565815, 2932360, 4105304, 5131630, 10263260, 20526520]

約数ペア:

[(1, 20526520), (2, 10263260), (4, 5131630), (5, 4105304), (7, 2932360), (8, 2565815), (10, 2052652), (14, 1466180), (20, 1026326), (28, 733090), (35, 586472), (40, 513163), (56, 366545), (70, 293236), (140, 146618), (280, 73309)]