20081660

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1223}}^1$

素因数の和:2053

約数の個数: 24

約数和(自身を含む): 42257376

約数和(自身を除く): 22175716

約数列:

[1, 2, 4, 5, 10, 20, 821, 1223, 1642, 2446, 3284, 4105, 4892, 6115, 8210, 12230, 16420, 24460, 1004083, 2008166, 4016332, 5020415, 10040830, 20081660]

約数ペア:

[(1, 20081660), (2, 10040830), (4, 5020415), (5, 4016332), (10, 2008166), (20, 1004083), (821, 24460), (1223, 16420), (1642, 12230), (2446, 8210), (3284, 6115), (4105, 4892)]