199954790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{408071}}^1$

素因数の和:408092

約数の個数: 24

約数和(自身を含む): 418681872

約数和(自身を除く): 218727082

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 408071, 816142, 2040355, 2856497, 4080710, 5712994, 14282485, 19995479, 28564970, 39990958, 99977395, 199954790]

約数ペア:

[(1, 199954790), (2, 99977395), (5, 39990958), (7, 28564970), (10, 19995479), (14, 14282485), (35, 5712994), (49, 4080710), (70, 2856497), (98, 2040355), (245, 816142), (490, 408071)]