20054540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8287}}^1$

素因数の和:8318

約数の個数: 36

約数和(自身を含む): 46296768

約数和(自身を除く): 26242228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8287, 16574, 33148, 41435, 82870, 91157, 165740, 182314, 364628, 455785, 911570, 1002727, 1823140, 2005454, 4010908, 5013635, 10027270, 20054540]

約数ペア:

[(1, 20054540), (2, 10027270), (4, 5013635), (5, 4010908), (10, 2005454), (11, 1823140), (20, 1002727), (22, 911570), (44, 455785), (55, 364628), (110, 182314), (121, 165740), (220, 91157), (242, 82870), (484, 41435), (605, 33148), (1210, 16574), (2420, 8287)]