55381780

素因数分解:

$2^2\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{1721}}^1$

素因数の和:3339

約数の個数: 24

約数和(自身を含む): 116441640

約数和(自身を除く): 61059860

約数列:

[1, 2, 4, 5, 10, 20, 1609, 1721, 3218, 3442, 6436, 6884, 8045, 8605, 16090, 17210, 32180, 34420, 2769089, 5538178, 11076356, 13845445, 27690890, 55381780]

約数ペア:

[(1, 55381780), (2, 27690890), (4, 13845445), (5, 11076356), (10, 5538178), (20, 2769089), (1609, 34420), (1721, 32180), (3218, 17210), (3442, 16090), (6436, 8605), (6884, 8045)]