22228888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 47809440

約数和(自身を除く): 25580552

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 61, 82, 88, 101, 122, 164, 202, 244, 328, 404, 451, 488, 671, 808, 902, 1111, 1342, 1804, 2222, 2501, 2684, 3608, 4141, 4444, 5002, 5368, 6161, 8282, 8888, 10004, 12322, 16564, 20008, 24644, 27511, 33128, 45551, 49288, 55022, 67771, 91102, 110044, 135542, 182204, 220088, 252601, 271084, 364408, 505202, 542168, 1010404, 2020808, 2778611, 5557222, 11114444, 22228888]

約数ペア:

[(1, 22228888), (2, 11114444), (4, 5557222), (8, 2778611), (11, 2020808), (22, 1010404), (41, 542168), (44, 505202), (61, 364408), (82, 271084), (88, 252601), (101, 220088), (122, 182204), (164, 135542), (202, 110044), (244, 91102), (328, 67771), (404, 55022), (451, 49288), (488, 45551), (671, 33128), (808, 27511), (902, 24644), (1111, 20008), (1342, 16564), (1804, 12322), (2222, 10004), (2501, 8888), (2684, 8282), (3608, 6161), (4141, 5368), (4444, 5002)]