1881340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 3991680

約数和(自身を除く): 2110340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 863, 1090, 1726, 2180, 3452, 4315, 8630, 17260, 94067, 188134, 376268, 470335, 940670, 1881340]

約数ペア:

[(1, 1881340), (2, 940670), (4, 470335), (5, 376268), (10, 188134), (20, 94067), (109, 17260), (218, 8630), (436, 4315), (545, 3452), (863, 2180), (1090, 1726)]