13161620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1609}}^1$

素因数の和:2027

約数の個数: 24

約数和(自身を含む): 27724200

約数和(自身を除く): 14562580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1609, 1636, 2045, 3218, 4090, 6436, 8045, 8180, 16090, 32180, 658081, 1316162, 2632324, 3290405, 6580810, 13161620]

約数ペア:

[(1, 13161620), (2, 6580810), (4, 3290405), (5, 2632324), (10, 1316162), (20, 658081), (409, 32180), (818, 16090), (1609, 8180), (1636, 8045), (2045, 6436), (3218, 4090)]