13719280

素因数分解:

$2^4\times 5^1\times {\mathrm{171491}}^1$

素因数の和:171504

約数の個数: 20

約数和(自身を含む): 31897512

約数和(自身を除く): 18178232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 171491, 342982, 685964, 857455, 1371928, 1714910, 2743856, 3429820, 6859640, 13719280]

約数ペア:

[(1, 13719280), (2, 6859640), (4, 3429820), (5, 2743856), (8, 1714910), (10, 1371928), (16, 857455), (20, 685964), (40, 342982), (80, 171491)]