1719280

素因数分解:

$2^4\times 5^1\times {\mathrm{21491}}^1$

素因数の和:21504

約数の個数: 20

約数和(自身を含む): 3997512

約数和(自身を除く): 2278232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21491, 42982, 85964, 107455, 171928, 214910, 343856, 429820, 859640, 1719280]

約数ペア:

[(1, 1719280), (2, 859640), (4, 429820), (5, 343856), (8, 214910), (10, 171928), (16, 107455), (20, 85964), (40, 42982), (80, 21491)]