9811640

素因数分解:

$2^3\times 5^1\times {\mathrm{245291}}^1$

素因数の和:245302

約数の個数: 16

約数和(自身を含む): 22076280

約数和(自身を除く): 12264640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 245291, 490582, 981164, 1226455, 1962328, 2452910, 4905820, 9811640]

約数ペア:

[(1, 9811640), (2, 4905820), (4, 2452910), (5, 1962328), (8, 1226455), (10, 981164), (20, 490582), (40, 245291)]