1431280

素因数分解:

$2^4\times 5^1\times {\mathrm{17891}}^1$

素因数の和:17904

約数の個数: 20

約数和(自身を含む): 3327912

約数和(自身を除く): 1896632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17891, 35782, 71564, 89455, 143128, 178910, 286256, 357820, 715640, 1431280]

約数ペア:

[(1, 1431280), (2, 715640), (4, 357820), (5, 286256), (8, 178910), (10, 143128), (16, 89455), (20, 71564), (40, 35782), (80, 17891)]