20542740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{342379}}^1$

素因数の和:342391

約数の個数: 24

約数和(自身を含む): 57519840

約数和(自身を除く): 36977100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 342379, 684758, 1027137, 1369516, 1711895, 2054274, 3423790, 4108548, 5135685, 6847580, 10271370, 20542740]

約数ペア:

[(1, 20542740), (2, 10271370), (3, 6847580), (4, 5135685), (5, 4108548), (6, 3423790), (10, 2054274), (12, 1711895), (15, 1369516), (20, 1027137), (30, 684758), (60, 342379)]