256398478

素因数分解:

$2^1\times 7^2\times {\mathrm{1301}}^1\times {\mathrm{2011}}^1$

素因数の和:3328

約数の個数: 24

約数和(自身を含む): 447955704

約数和(自身を除く): 191557226

約数列:

[1, 2, 7, 14, 49, 98, 1301, 2011, 2602, 4022, 9107, 14077, 18214, 28154, 63749, 98539, 127498, 197078, 2616311, 5232622, 18314177, 36628354, 128199239, 256398478]

約数ペア:

[(1, 256398478), (2, 128199239), (7, 36628354), (14, 18314177), (49, 5232622), (98, 2616311), (1301, 197078), (2011, 127498), (2602, 98539), (4022, 63749), (9107, 28154), (14077, 18214)]