290408080

素因数分解:

$2^4\times 5^1\times {\mathrm{3630101}}^1$

素因数の和:3630114

約数の個数: 20

約数和(自身を含む): 675198972

約数和(自身を除く): 384790892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3630101, 7260202, 14520404, 18150505, 29040808, 36301010, 58081616, 72602020, 145204040, 290408080]

約数ペア:

[(1, 290408080), (2, 145204040), (4, 72602020), (5, 58081616), (8, 36301010), (10, 29040808), (16, 18150505), (20, 14520404), (40, 7260202), (80, 3630101)]