389780902

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{139907}}^1$

素因数の和:140115

約数の個数: 16

約数和(自身を含む): 671558400

約数和(自身を除く): 281777498

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 139907, 279814, 979349, 1958698, 27841493, 55682986, 194890451, 389780902]

約数ペア:

[(1, 389780902), (2, 194890451), (7, 55682986), (14, 27841493), (199, 1958698), (398, 979349), (1393, 279814), (2786, 139907)]