27207940

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1657}}^1$

素因数の和:2487

約数の個数: 24

約数和(自身を含む): 57240792

約数和(自身を除く): 30032852

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 1657, 3284, 3314, 4105, 6628, 8210, 8285, 16420, 16570, 33140, 1360397, 2720794, 5441588, 6801985, 13603970, 27207940]

約数ペア:

[(1, 27207940), (2, 13603970), (4, 6801985), (5, 5441588), (10, 2720794), (20, 1360397), (821, 33140), (1642, 16570), (1657, 16420), (3284, 8285), (3314, 8210), (4105, 6628)]