181991740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1299941}}^1$

素因数の和:1299957

約数の個数: 24

約数和(自身を含む): 436780512

約数和(自身を除く): 254788772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1299941, 2599882, 5199764, 6499705, 9099587, 12999410, 18199174, 25998820, 36398348, 45497935, 90995870, 181991740]

約数ペア:

[(1, 181991740), (2, 90995870), (4, 45497935), (5, 36398348), (7, 25998820), (10, 18199174), (14, 12999410), (20, 9099587), (28, 6499705), (35, 5199764), (70, 2599882), (140, 1299941)]