18932780

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1231}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 39842880

約数和(自身を除く): 20910100

約数列:

[1, 2, 4, 5, 10, 20, 769, 1231, 1538, 2462, 3076, 3845, 4924, 6155, 7690, 12310, 15380, 24620, 946639, 1893278, 3786556, 4733195, 9466390, 18932780]

約数ペア:

[(1, 18932780), (2, 9466390), (4, 4733195), (5, 3786556), (10, 1893278), (20, 946639), (769, 24620), (1231, 15380), (1538, 12310), (2462, 7690), (3076, 6155), (3845, 4924)]