1990147480

素因数分解:

$2^3\times 5^1\times {\mathrm{49753687}}^1$

素因数の和:49753698

約数の個数: 16

約数和(自身を含む): 4477831920

約数和(自身を除く): 2487684440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49753687, 99507374, 199014748, 248768435, 398029496, 497536870, 995073740, 1990147480]

約数ペア:

[(1, 1990147480), (2, 995073740), (4, 497536870), (5, 398029496), (8, 248768435), (10, 199014748), (20, 99507374), (40, 49753687)]