4005020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4657}}^1$

素因数の和:4709

約数の個数: 24

約数和(自身を含む): 8607984

約数和(自身を除く): 4602964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 4657, 9314, 18628, 23285, 46570, 93140, 200251, 400502, 801004, 1001255, 2002510, 4005020]

約数ペア:

[(1, 4005020), (2, 2002510), (4, 1001255), (5, 801004), (10, 400502), (20, 200251), (43, 93140), (86, 46570), (172, 23285), (215, 18628), (430, 9314), (860, 4657)]