161697940

素因数分解:

$2^2\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{3919}}^1$

素因数の和:5991

約数の個数: 24

約数和(自身を含む): 339816960

約数和(自身を除く): 178119020

約数列:

[1, 2, 4, 5, 10, 20, 2063, 3919, 4126, 7838, 8252, 10315, 15676, 19595, 20630, 39190, 41260, 78380, 8084897, 16169794, 32339588, 40424485, 80848970, 161697940]

約数ペア:

[(1, 161697940), (2, 80848970), (4, 40424485), (5, 32339588), (10, 16169794), (20, 8084897), (2063, 78380), (3919, 41260), (4126, 39190), (7838, 20630), (8252, 19595), (10315, 15676)]