64770020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{462643}}^1$

素因数の和:462659

約数の個数: 24

約数和(自身を含む): 155448384

約数和(自身を除く): 90678364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 462643, 925286, 1850572, 2313215, 3238501, 4626430, 6477002, 9252860, 12954004, 16192505, 32385010, 64770020]

約数ペア:

[(1, 64770020), (2, 32385010), (4, 16192505), (5, 12954004), (7, 9252860), (10, 6477002), (14, 4626430), (20, 3238501), (28, 2313215), (35, 1850572), (70, 925286), (140, 462643)]