87142220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9661}}^1$

素因数の和:9722

約数の個数: 48

約数和(自身を含む): 204525216

約数和(自身を除く): 117382996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 9661, 19322, 38644, 48305, 96610, 106271, 193220, 212542, 396101, 425084, 531355, 792202, 1062710, 1584404, 1980505, 2125420, 3961010, 4357111, 7922020, 8714222, 17428444, 21785555, 43571110, 87142220]

約数ペア:

[(1, 87142220), (2, 43571110), (4, 21785555), (5, 17428444), (10, 8714222), (11, 7922020), (20, 4357111), (22, 3961010), (41, 2125420), (44, 1980505), (55, 1584404), (82, 1062710), (110, 792202), (164, 531355), (205, 425084), (220, 396101), (410, 212542), (451, 193220), (820, 106271), (902, 96610), (1804, 48305), (2255, 38644), (4510, 19322), (9020, 9661)]