40412780

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5039}}^1$

素因数の和:5449

約数の個数: 24

約数和(自身を含む): 85095360

約数和(自身を除く): 44682580

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 5039, 8020, 10078, 20156, 25195, 50390, 100780, 2020639, 4041278, 8082556, 10103195, 20206390, 40412780]

約数ペア:

[(1, 40412780), (2, 20206390), (4, 10103195), (5, 8082556), (10, 4041278), (20, 2020639), (401, 100780), (802, 50390), (1604, 25195), (2005, 20156), (4010, 10078), (5039, 8020)]