19379990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{39551}}^1$

素因数の和:39572

約数の個数: 24

約数和(自身を含む): 40580352

約数和(自身を除く): 21200362

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 39551, 79102, 197755, 276857, 395510, 553714, 1384285, 1937999, 2768570, 3875998, 9689995, 19379990]

約数ペア:

[(1, 19379990), (2, 9689995), (5, 3875998), (7, 2768570), (10, 1937999), (14, 1384285), (35, 553714), (49, 395510), (70, 276857), (98, 197755), (245, 79102), (490, 39551)]