19886220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110479}}^1$

素因数の和:110494

約数の個数: 36

約数和(自身を含む): 60322080

約数和(自身を除く): 40435860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110479, 220958, 331437, 441916, 552395, 662874, 994311, 1104790, 1325748, 1657185, 1988622, 2209580, 3314370, 3977244, 4971555, 6628740, 9943110, 19886220]

約数ペア:

[(1, 19886220), (2, 9943110), (3, 6628740), (4, 4971555), (5, 3977244), (6, 3314370), (9, 2209580), (10, 1988622), (12, 1657185), (15, 1325748), (18, 1104790), (20, 994311), (30, 662874), (36, 552395), (45, 441916), (60, 331437), (90, 220958), (180, 110479)]