64742020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{462443}}^1$

素因数の和:462459

約数の個数: 24

約数和(自身を含む): 155381184

約数和(自身を除く): 90639164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 462443, 924886, 1849772, 2312215, 3237101, 4624430, 6474202, 9248860, 12948404, 16185505, 32371010, 64742020]

約数ペア:

[(1, 64742020), (2, 32371010), (4, 16185505), (5, 12948404), (7, 9248860), (10, 6474202), (14, 4624430), (20, 3237101), (28, 2312215), (35, 1849772), (70, 924886), (140, 462443)]