64770040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{37657}}^1$

素因数の和:37711

約数の個数: 32

約数和(自身を含む): 149125680

約数和(自身を除く): 84355640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 37657, 75314, 150628, 188285, 301256, 376570, 753140, 1506280, 1619251, 3238502, 6477004, 8096255, 12954008, 16192510, 32385020, 64770040]

約数ペア:

[(1, 64770040), (2, 32385020), (4, 16192510), (5, 12954008), (8, 8096255), (10, 6477004), (20, 3238502), (40, 1619251), (43, 1506280), (86, 753140), (172, 376570), (215, 301256), (344, 188285), (430, 150628), (860, 75314), (1720, 37657)]