19382980

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1123}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 40787712

約数和(自身を除く): 21404732

約数列:

[1, 2, 4, 5, 10, 20, 863, 1123, 1726, 2246, 3452, 4315, 4492, 5615, 8630, 11230, 17260, 22460, 969149, 1938298, 3876596, 4845745, 9691490, 19382980]

約数ペア:

[(1, 19382980), (2, 9691490), (4, 4845745), (5, 3876596), (10, 1938298), (20, 969149), (863, 22460), (1123, 17260), (1726, 11230), (2246, 8630), (3452, 5615), (4315, 4492)]