205121260

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{29387}}^1$

素因数の和:29745

約数の個数: 24

約数和(自身を含む): 432003600

約数和(自身を除く): 226882340

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 29387, 58774, 117548, 146935, 293870, 587740, 10256063, 20512126, 41024252, 51280315, 102560630, 205121260]

約数ペア:

[(1, 205121260), (2, 102560630), (4, 51280315), (5, 41024252), (10, 20512126), (20, 10256063), (349, 587740), (698, 293870), (1396, 146935), (1745, 117548), (3490, 58774), (6980, 29387)]