4052020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 9854208

約数和(自身を除く): 5802188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 281, 412, 515, 562, 721, 1030, 1124, 1405, 1442, 1967, 2060, 2810, 2884, 3605, 3934, 5620, 7210, 7868, 9835, 14420, 19670, 28943, 39340, 57886, 115772, 144715, 202601, 289430, 405202, 578860, 810404, 1013005, 2026010, 4052020]

約数ペア:

[(1, 4052020), (2, 2026010), (4, 1013005), (5, 810404), (7, 578860), (10, 405202), (14, 289430), (20, 202601), (28, 144715), (35, 115772), (70, 57886), (103, 39340), (140, 28943), (206, 19670), (281, 14420), (412, 9835), (515, 7868), (562, 7210), (721, 5620), (1030, 3934), (1124, 3605), (1405, 2884), (1442, 2810), (1967, 2060)]