939580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 1995840

約数和(自身を除く): 1056260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 431, 436, 545, 862, 1090, 1724, 2155, 2180, 4310, 8620, 46979, 93958, 187916, 234895, 469790, 939580]

約数ペア:

[(1, 939580), (2, 469790), (4, 234895), (5, 187916), (10, 93958), (20, 46979), (109, 8620), (218, 4310), (431, 2180), (436, 2155), (545, 1724), (862, 1090)]