20180957020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1275661}}^1$

素因数の和:1275790

約数の個数: 48

約数和(自身を含む): 48862957248

約数和(自身を除く): 28682000228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 7910, 15820, 1275661, 2551322, 5102644, 6378305, 8929627, 12756610, 17859254, 25513220, 35718508, 44648135, 89296270, 144149693, 178592540, 288299386, 576598772, 720748465, 1009047851, 1441496930, 2018095702, 2882993860, 4036191404, 5045239255, 10090478510, 20180957020]

約数ペア:

[(1, 20180957020), (2, 10090478510), (4, 5045239255), (5, 4036191404), (7, 2882993860), (10, 2018095702), (14, 1441496930), (20, 1009047851), (28, 720748465), (35, 576598772), (70, 288299386), (113, 178592540), (140, 144149693), (226, 89296270), (452, 44648135), (565, 35718508), (791, 25513220), (1130, 17859254), (1582, 12756610), (2260, 8929627), (3164, 6378305), (3955, 5102644), (7910, 2551322), (15820, 1275661)]