18788660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2083}}^1$

素因数の和:2144

約数の個数: 48

約数和(自身を含む): 44114112

約数和(自身を除く): 25325452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2083, 2255, 4166, 4510, 8332, 9020, 10415, 20830, 22913, 41660, 45826, 85403, 91652, 114565, 170806, 229130, 341612, 427015, 458260, 854030, 939433, 1708060, 1878866, 3757732, 4697165, 9394330, 18788660]

約数ペア:

[(1, 18788660), (2, 9394330), (4, 4697165), (5, 3757732), (10, 1878866), (11, 1708060), (20, 939433), (22, 854030), (41, 458260), (44, 427015), (55, 341612), (82, 229130), (110, 170806), (164, 114565), (205, 91652), (220, 85403), (410, 45826), (451, 41660), (820, 22913), (902, 20830), (1804, 10415), (2083, 9020), (2255, 8332), (4166, 4510)]