19188020

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2749}}^1$

素因数の和:3107

約数の個数: 24

約数和(自身を含む): 40425000

約数和(自身を除く): 21236980

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 2749, 3490, 5498, 6980, 10996, 13745, 27490, 54980, 959401, 1918802, 3837604, 4797005, 9594010, 19188020]

約数ペア:

[(1, 19188020), (2, 9594010), (4, 4797005), (5, 3837604), (10, 1918802), (20, 959401), (349, 54980), (698, 27490), (1396, 13745), (1745, 10996), (2749, 6980), (3490, 5498)]