810404

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 1642368

約数和(自身を除く): 831964

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 281, 412, 562, 721, 1124, 1442, 1967, 2884, 3934, 7868, 28943, 57886, 115772, 202601, 405202, 810404]

約数ペア:

[(1, 810404), (2, 405202), (4, 202601), (7, 115772), (14, 57886), (28, 28943), (103, 7868), (206, 3934), (281, 2884), (412, 1967), (562, 1442), (721, 1124)]