8539640

素因数分解:

$2^3\times 5^1\times {\mathrm{213491}}^1$

素因数の和:213502

約数の個数: 16

約数和(自身を含む): 19214280

約数和(自身を除く): 10674640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 213491, 426982, 853964, 1067455, 1707928, 2134910, 4269820, 8539640]

約数ペア:

[(1, 8539640), (2, 4269820), (4, 2134910), (5, 1707928), (8, 1067455), (10, 853964), (20, 426982), (40, 213491)]