208404740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{52363}}^1$

素因数の和:52571

約数の個数: 24

約数和(自身を含む): 439857600

約数和(自身を除く): 231452860

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 52363, 104726, 209452, 261815, 523630, 1047260, 10420237, 20840474, 41680948, 52101185, 104202370, 208404740]

約数ペア:

[(1, 208404740), (2, 104202370), (4, 52101185), (5, 41680948), (10, 20840474), (20, 10420237), (199, 1047260), (398, 523630), (796, 261815), (995, 209452), (1990, 104726), (3980, 52363)]