81382180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{33629}}^1$

素因数の和:33660

約数の個数: 36

約数和(自身を含む): 187857180

約数和(自身を除く): 106475000

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 33629, 67258, 134516, 168145, 336290, 369919, 672580, 739838, 1479676, 1849595, 3699190, 4069109, 7398380, 8138218, 16276436, 20345545, 40691090, 81382180]

約数ペア:

[(1, 81382180), (2, 40691090), (4, 20345545), (5, 16276436), (10, 8138218), (11, 7398380), (20, 4069109), (22, 3699190), (44, 1849595), (55, 1479676), (110, 739838), (121, 672580), (220, 369919), (242, 336290), (484, 168145), (605, 134516), (1210, 67258), (2420, 33629)]