9880280

素因数分解:

$2^3\times 5^1\times {\mathrm{247007}}^1$

素因数の和:247018

約数の個数: 16

約数和(自身を含む): 22230720

約数和(自身を除く): 12350440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 247007, 494014, 988028, 1235035, 1976056, 2470070, 4940140, 9880280]

約数ペア:

[(1, 9880280), (2, 4940140), (4, 2470070), (5, 1976056), (8, 1235035), (10, 988028), (20, 494014), (40, 247007)]