80830040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18539}}^1$

素因数の和:18659

約数の個数: 32

約数和(自身を含む): 183546000

約数和(自身を除く): 102715960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 18539, 37078, 74156, 92695, 148312, 185390, 370780, 741560, 2020751, 4041502, 8083004, 10103755, 16166008, 20207510, 40415020, 80830040]

約数ペア:

[(1, 80830040), (2, 40415020), (4, 20207510), (5, 16166008), (8, 10103755), (10, 8083004), (20, 4041502), (40, 2020751), (109, 741560), (218, 370780), (436, 185390), (545, 148312), (872, 92695), (1090, 74156), (2180, 37078), (4360, 18539)]