20526440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4241}}^1$

素因数の和:4274

約数の個数: 48

約数和(自身を含む): 50776740

約数和(自身を除く): 30250300

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4241, 4840, 8482, 16964, 21205, 33928, 42410, 46651, 84820, 93302, 169640, 186604, 233255, 373208, 466510, 513161, 933020, 1026322, 1866040, 2052644, 2565805, 4105288, 5131610, 10263220, 20526440]

約数ペア:

[(1, 20526440), (2, 10263220), (4, 5131610), (5, 4105288), (8, 2565805), (10, 2052644), (11, 1866040), (20, 1026322), (22, 933020), (40, 513161), (44, 466510), (55, 373208), (88, 233255), (110, 186604), (121, 169640), (220, 93302), (242, 84820), (440, 46651), (484, 42410), (605, 33928), (968, 21205), (1210, 16964), (2420, 8482), (4241, 4840)]