1401740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:761

約数の個数: 24

約数和(自身を含む): 2975280

約数和(自身を除く): 1573540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 643, 1090, 1286, 2180, 2572, 3215, 6430, 12860, 70087, 140174, 280348, 350435, 700870, 1401740]

約数ペア:

[(1, 1401740), (2, 700870), (4, 350435), (5, 280348), (10, 140174), (20, 70087), (109, 12860), (218, 6430), (436, 3215), (545, 2572), (643, 2180), (1090, 1286)]