28719740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205141}}^1$

素因数の和:205157

約数の個数: 24

約数和(自身を含む): 68927712

約数和(自身を除く): 40207972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205141, 410282, 820564, 1025705, 1435987, 2051410, 2871974, 4102820, 5743948, 7179935, 14359870, 28719740]

約数ペア:

[(1, 28719740), (2, 14359870), (4, 7179935), (5, 5743948), (7, 4102820), (10, 2871974), (14, 2051410), (20, 1435987), (28, 1025705), (35, 820564), (70, 410282), (140, 205141)]