71085020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{82657}}^1$

素因数の和:82709

約数の個数: 24

約数和(自身を含む): 152751984

約数和(自身を除く): 81666964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 82657, 165314, 330628, 413285, 826570, 1653140, 3554251, 7108502, 14217004, 17771255, 35542510, 71085020]

約数ペア:

[(1, 71085020), (2, 35542510), (4, 17771255), (5, 14217004), (10, 7108502), (20, 3554251), (43, 1653140), (86, 826570), (172, 413285), (215, 330628), (430, 165314), (860, 82657)]