20033420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2221}}^1$

素因数の和:2282

約数の個数: 48

約数和(自身を含む): 47035296

約数和(自身を除く): 27001876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2221, 2255, 4442, 4510, 8884, 9020, 11105, 22210, 24431, 44420, 48862, 91061, 97724, 122155, 182122, 244310, 364244, 455305, 488620, 910610, 1001671, 1821220, 2003342, 4006684, 5008355, 10016710, 20033420]

約数ペア:

[(1, 20033420), (2, 10016710), (4, 5008355), (5, 4006684), (10, 2003342), (11, 1821220), (20, 1001671), (22, 910610), (41, 488620), (44, 455305), (55, 364244), (82, 244310), (110, 182122), (164, 122155), (205, 97724), (220, 91061), (410, 48862), (451, 44420), (820, 24431), (902, 22210), (1804, 11105), (2221, 9020), (2255, 8884), (4442, 4510)]