80901740

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{20959}}^1$

素因数の和:21161

約数の個数: 24

約数和(自身を含む): 170782080

約数和(自身を除く): 89880340

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 20959, 41918, 83836, 104795, 209590, 419180, 4045087, 8090174, 16180348, 20225435, 40450870, 80901740]

約数ペア:

[(1, 80901740), (2, 40450870), (4, 20225435), (5, 16180348), (10, 8090174), (20, 4045087), (193, 419180), (386, 209590), (772, 104795), (965, 83836), (1930, 41918), (3860, 20959)]