20172460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13099}}^1$

素因数の和:13126

約数の個数: 48

約数和(自身を含む): 52819200

約数和(自身を除く): 32646740

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13099, 26198, 52396, 65495, 91693, 130990, 144089, 183386, 261980, 288178, 366772, 458465, 576356, 720445, 916930, 1008623, 1440890, 1833860, 2017246, 2881780, 4034492, 5043115, 10086230, 20172460]

約数ペア:

[(1, 20172460), (2, 10086230), (4, 5043115), (5, 4034492), (7, 2881780), (10, 2017246), (11, 1833860), (14, 1440890), (20, 1008623), (22, 916930), (28, 720445), (35, 576356), (44, 458465), (55, 366772), (70, 288178), (77, 261980), (110, 183386), (140, 144089), (154, 130990), (220, 91693), (308, 65495), (385, 52396), (770, 26198), (1540, 13099)]