20180720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36037}}^1$

素因数の和:36057

約数の個数: 40

約数和(自身を含む): 53624544

約数和(自身を除く): 33443824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36037, 72074, 144148, 180185, 252259, 288296, 360370, 504518, 576592, 720740, 1009036, 1261295, 1441480, 2018072, 2522590, 2882960, 4036144, 5045180, 10090360, 20180720]

約数ペア:

[(1, 20180720), (2, 10090360), (4, 5045180), (5, 4036144), (7, 2882960), (8, 2522590), (10, 2018072), (14, 1441480), (16, 1261295), (20, 1009036), (28, 720740), (35, 576592), (40, 504518), (56, 360370), (70, 288296), (80, 252259), (112, 180185), (140, 144148), (280, 72074), (560, 36037)]