19728050

素因数分解:

$2^1\times 5^2\times {\mathrm{571}}^1\times {\mathrm{691}}^1$

素因数の和:1274

約数の個数: 24

約数和(自身を含む): 36811632

約数和(自身を除く): 17083582

約数列:

[1, 2, 5, 10, 25, 50, 571, 691, 1142, 1382, 2855, 3455, 5710, 6910, 14275, 17275, 28550, 34550, 394561, 789122, 1972805, 3945610, 9864025, 19728050]

約数ペア:

[(1, 19728050), (2, 9864025), (5, 3945610), (10, 1972805), (25, 789122), (50, 394561), (571, 34550), (691, 28550), (1142, 17275), (1382, 14275), (2855, 6910), (3455, 5710)]