40415020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18539}}^1$

素因数の和:18657

約数の個数: 24

約数和(自身を含む): 85654800

約数和(自身を除く): 45239780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18539, 37078, 74156, 92695, 185390, 370780, 2020751, 4041502, 8083004, 10103755, 20207510, 40415020]

約数ペア:

[(1, 40415020), (2, 20207510), (4, 10103755), (5, 8083004), (10, 4041502), (20, 2020751), (109, 370780), (218, 185390), (436, 92695), (545, 74156), (1090, 37078), (2180, 18539)]