9903640

素因数分解:

$2^3\times 5^1\times {\mathrm{247591}}^1$

素因数の和:247602

約数の個数: 16

約数和(自身を含む): 22283280

約数和(自身を除く): 12379640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 247591, 495182, 990364, 1237955, 1980728, 2475910, 4951820, 9903640]

約数ペア:

[(1, 9903640), (2, 4951820), (4, 2475910), (5, 1980728), (8, 1237955), (10, 990364), (20, 495182), (40, 247591)]