204286740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{486397}}^1$

素因数の和:486416

約数の個数: 48

約数和(自身を含む): 653718912

約数和(自身を除く): 449432172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 486397, 972794, 1459191, 1945588, 2431985, 2918382, 3404779, 4863970, 5836764, 6809558, 7295955, 9727940, 10214337, 13619116, 14591910, 17023895, 20428674, 29183820, 34047790, 40857348, 51071685, 68095580, 102143370, 204286740]

約数ペア:

[(1, 204286740), (2, 102143370), (3, 68095580), (4, 51071685), (5, 40857348), (6, 34047790), (7, 29183820), (10, 20428674), (12, 17023895), (14, 14591910), (15, 13619116), (20, 10214337), (21, 9727940), (28, 7295955), (30, 6809558), (35, 5836764), (42, 4863970), (60, 3404779), (70, 2918382), (84, 2431985), (105, 1945588), (140, 1459191), (210, 972794), (420, 486397)]