20731260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:435

約数の個数: 96

約数和(自身を含む): 64157184

約数和(自身を除く): 43425924

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 101, 110, 132, 165, 202, 220, 303, 311, 330, 404, 505, 606, 622, 660, 933, 1010, 1111, 1212, 1244, 1515, 1555, 1866, 2020, 2222, 3030, 3110, 3333, 3421, 3732, 4444, 4665, 5555, 6060, 6220, 6666, 6842, 9330, 10263, 11110, 13332, 13684, 16665, 17105, 18660, 20526, 22220, 31411, 33330, 34210, 41052, 51315, 62822, 66660, 68420, 94233, 102630, 125644, 157055, 188466, 205260, 314110, 345521, 376932, 471165, 628220, 691042, 942330, 1036563, 1382084, 1727605, 1884660, 2073126, 3455210, 4146252, 5182815, 6910420, 10365630, 20731260]

約数ペア:

[(1, 20731260), (2, 10365630), (3, 6910420), (4, 5182815), (5, 4146252), (6, 3455210), (10, 2073126), (11, 1884660), (12, 1727605), (15, 1382084), (20, 1036563), (22, 942330), (30, 691042), (33, 628220), (44, 471165), (55, 376932), (60, 345521), (66, 314110), (101, 205260), (110, 188466), (132, 157055), (165, 125644), (202, 102630), (220, 94233), (303, 68420), (311, 66660), (330, 62822), (404, 51315), (505, 41052), (606, 34210), (622, 33330), (660, 31411), (933, 22220), (1010, 20526), (1111, 18660), (1212, 17105), (1244, 16665), (1515, 13684), (1555, 13332), (1866, 11110), (2020, 10263), (2222, 9330), (3030, 6842), (3110, 6666), (3333, 6220), (3421, 6060), (3732, 5555), (4444, 4665)]