20594420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 55351296

約数和(自身を除く): 34756876

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 110, 140, 154, 172, 215, 220, 301, 308, 311, 385, 430, 473, 602, 622, 770, 860, 946, 1204, 1244, 1505, 1540, 1555, 1892, 2177, 2365, 3010, 3110, 3311, 3421, 4354, 4730, 6020, 6220, 6622, 6842, 8708, 9460, 10885, 13244, 13373, 13684, 16555, 17105, 21770, 23947, 26746, 33110, 34210, 43540, 47894, 53492, 66220, 66865, 68420, 93611, 95788, 119735, 133730, 147103, 187222, 239470, 267460, 294206, 374444, 468055, 478940, 588412, 735515, 936110, 1029721, 1471030, 1872220, 2059442, 2942060, 4118884, 5148605, 10297210, 20594420]

約数ペア:

[(1, 20594420), (2, 10297210), (4, 5148605), (5, 4118884), (7, 2942060), (10, 2059442), (11, 1872220), (14, 1471030), (20, 1029721), (22, 936110), (28, 735515), (35, 588412), (43, 478940), (44, 468055), (55, 374444), (70, 294206), (77, 267460), (86, 239470), (110, 187222), (140, 147103), (154, 133730), (172, 119735), (215, 95788), (220, 93611), (301, 68420), (308, 66865), (311, 66220), (385, 53492), (430, 47894), (473, 43540), (602, 34210), (622, 33110), (770, 26746), (860, 23947), (946, 21770), (1204, 17105), (1244, 16555), (1505, 13684), (1540, 13373), (1555, 13244), (1892, 10885), (2177, 9460), (2365, 8708), (3010, 6842), (3110, 6622), (3311, 6220), (3421, 6020), (4354, 4730)]