19880200

素因数分解:

$2^3\times 5^2\times {\mathrm{99401}}^1$

素因数の和:99417

約数の個数: 24

約数和(自身を含む): 46221930

約数和(自身を除く): 26341730

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 99401, 198802, 397604, 497005, 795208, 994010, 1988020, 2485025, 3976040, 4970050, 9940100, 19880200]

約数ペア:

[(1, 19880200), (2, 9940100), (4, 4970050), (5, 3976040), (8, 2485025), (10, 1988020), (20, 994010), (25, 795208), (40, 497005), (50, 397604), (100, 198802), (200, 99401)]