20518020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113989}}^1$

素因数の和:114004

約数の個数: 36

約数和(自身を含む): 62238540

約数和(自身を除く): 41720520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113989, 227978, 341967, 455956, 569945, 683934, 1025901, 1139890, 1367868, 1709835, 2051802, 2279780, 3419670, 4103604, 5129505, 6839340, 10259010, 20518020]

約数ペア:

[(1, 20518020), (2, 10259010), (3, 6839340), (4, 5129505), (5, 4103604), (6, 3419670), (9, 2279780), (10, 2051802), (12, 1709835), (15, 1367868), (18, 1139890), (20, 1025901), (30, 683934), (36, 569945), (45, 455956), (60, 341967), (90, 227978), (180, 113989)]