20218870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41263}}^1$

素因数の和:41284

約数の個数: 24

約数和(自身を含む): 42336864

約数和(自身を除く): 22117994

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41263, 82526, 206315, 288841, 412630, 577682, 1444205, 2021887, 2888410, 4043774, 10109435, 20218870]

約数ペア:

[(1, 20218870), (2, 10109435), (5, 4043774), (7, 2888410), (10, 2021887), (14, 1444205), (35, 577682), (49, 412630), (70, 288841), (98, 206315), (245, 82526), (490, 41263)]