20781060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18229}}^1$

素因数の和:18260

約数の個数: 48

約数和(自身を含む): 61252800

約数和(自身を除く): 40471740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18229, 36458, 54687, 72916, 91145, 109374, 182290, 218748, 273435, 346351, 364580, 546870, 692702, 1039053, 1093740, 1385404, 1731755, 2078106, 3463510, 4156212, 5195265, 6927020, 10390530, 20781060]

約数ペア:

[(1, 20781060), (2, 10390530), (3, 6927020), (4, 5195265), (5, 4156212), (6, 3463510), (10, 2078106), (12, 1731755), (15, 1385404), (19, 1093740), (20, 1039053), (30, 692702), (38, 546870), (57, 364580), (60, 346351), (76, 273435), (95, 218748), (114, 182290), (190, 109374), (228, 91145), (285, 72916), (380, 54687), (570, 36458), (1140, 18229)]