19686540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328109}}^1$

素因数の和:328121

約数の個数: 24

約数和(自身を含む): 55122480

約数和(自身を除く): 35435940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328109, 656218, 984327, 1312436, 1640545, 1968654, 3281090, 3937308, 4921635, 6562180, 9843270, 19686540]

約数ペア:

[(1, 19686540), (2, 9843270), (3, 6562180), (4, 4921635), (5, 3937308), (6, 3281090), (10, 1968654), (12, 1640545), (15, 1312436), (20, 984327), (30, 656218), (60, 328109)]