204580390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{417511}}^1$

素因数の和:417532

約数の個数: 24

約数和(自身を含む): 428367312

約数和(自身を除く): 223786922

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 417511, 835022, 2087555, 2922577, 4175110, 5845154, 14612885, 20458039, 29225770, 40916078, 102290195, 204580390]

約数ペア:

[(1, 204580390), (2, 102290195), (5, 40916078), (7, 29225770), (10, 20458039), (14, 14612885), (35, 5845154), (49, 4175110), (70, 2922577), (98, 2087555), (245, 835022), (490, 417511)]