2189740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{15641}}^1$

素因数の和:15657

約数の個数: 24

約数和(自身を含む): 5255712

約数和(自身を除く): 3065972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 15641, 31282, 62564, 78205, 109487, 156410, 218974, 312820, 437948, 547435, 1094870, 2189740]

約数ペア:

[(1, 2189740), (2, 1094870), (4, 547435), (5, 437948), (7, 312820), (10, 218974), (14, 156410), (20, 109487), (28, 78205), (35, 62564), (70, 31282), (140, 15641)]