1808420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4759}}^1$

素因数の和:4787

約数の個数: 24

約数和(自身を含む): 3998400

約数和(自身を除く): 2189980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 4759, 9518, 19036, 23795, 47590, 90421, 95180, 180842, 361684, 452105, 904210, 1808420]

約数ペア:

[(1, 1808420), (2, 904210), (4, 452105), (5, 361684), (10, 180842), (19, 95180), (20, 90421), (38, 47590), (76, 23795), (95, 19036), (190, 9518), (380, 4759)]