20685540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{344759}}^1$

素因数の和:344771

約数の個数: 24

約数和(自身を含む): 57919680

約数和(自身を除く): 37234140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 344759, 689518, 1034277, 1379036, 1723795, 2068554, 3447590, 4137108, 5171385, 6895180, 10342770, 20685540]

約数ペア:

[(1, 20685540), (2, 10342770), (3, 6895180), (4, 5171385), (5, 4137108), (6, 3447590), (10, 2068554), (12, 1723795), (15, 1379036), (20, 1034277), (30, 689518), (60, 344759)]