1388372020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{96281}}^1$

素因数の和:96400

約数の個数: 48

約数和(自身を含む): 3364478208

約数和(自身を除く): 1976106188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 14420, 96281, 192562, 385124, 481405, 673967, 962810, 1347934, 1925620, 2695868, 3369835, 6739670, 9916943, 13479340, 19833886, 39667772, 49584715, 69418601, 99169430, 138837202, 198338860, 277674404, 347093005, 694186010, 1388372020]

約数ペア:

[(1, 1388372020), (2, 694186010), (4, 347093005), (5, 277674404), (7, 198338860), (10, 138837202), (14, 99169430), (20, 69418601), (28, 49584715), (35, 39667772), (70, 19833886), (103, 13479340), (140, 9916943), (206, 6739670), (412, 3369835), (515, 2695868), (721, 1925620), (1030, 1347934), (1442, 962810), (2060, 673967), (2884, 481405), (3605, 385124), (7210, 192562), (14420, 96281)]