20881450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14401}}^1$

素因数の和:14442

約数の個数: 24

約数和(自身を含む): 40181580

約数和(自身を除く): 19300130

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14401, 28802, 72005, 144010, 360025, 417629, 720050, 835258, 2088145, 4176290, 10440725, 20881450]

約数ペア:

[(1, 20881450), (2, 10440725), (5, 4176290), (10, 2088145), (25, 835258), (29, 720050), (50, 417629), (58, 360025), (145, 144010), (290, 72005), (725, 28802), (1450, 14401)]