7642820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8887}}^1$

素因数の和:8939

約数の個数: 24

約数和(自身を含む): 16425024

約数和(自身を除く): 8782204

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 8887, 17774, 35548, 44435, 88870, 177740, 382141, 764282, 1528564, 1910705, 3821410, 7642820]

約数ペア:

[(1, 7642820), (2, 3821410), (4, 1910705), (5, 1528564), (10, 764282), (20, 382141), (43, 177740), (86, 88870), (172, 44435), (215, 35548), (430, 17774), (860, 8887)]