640564568

素因数分解:

$2^3\times 7^1\times {\mathrm{11438653}}^1$

素因数の和:11438666

約数の個数: 16

約数和(自身を含む): 1372638480

約数和(自身を除く): 732073912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 11438653, 22877306, 45754612, 80070571, 91509224, 160141142, 320282284, 640564568]

約数ペア:

[(1, 640564568), (2, 320282284), (4, 160141142), (7, 91509224), (8, 80070571), (14, 45754612), (28, 22877306), (56, 11438653)]