20186780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23473}}^1$

素因数の和:23525

約数の個数: 24

約数和(自身を含む): 43379952

約数和(自身を除く): 23193172

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23473, 46946, 93892, 117365, 234730, 469460, 1009339, 2018678, 4037356, 5046695, 10093390, 20186780]

約数ペア:

[(1, 20186780), (2, 10093390), (4, 5046695), (5, 4037356), (10, 2018678), (20, 1009339), (43, 469460), (86, 234730), (172, 117365), (215, 93892), (430, 46946), (860, 23473)]