19015420

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2371}}^1$

素因数の和:2781

約数の個数: 24

約数和(自身を含む): 40048848

約数和(自身を除く): 21033428

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 2371, 4010, 4742, 8020, 9484, 11855, 23710, 47420, 950771, 1901542, 3803084, 4753855, 9507710, 19015420]

約数ペア:

[(1, 19015420), (2, 9507710), (4, 4753855), (5, 3803084), (10, 1901542), (20, 950771), (401, 47420), (802, 23710), (1604, 11855), (2005, 9484), (2371, 8020), (4010, 4742)]