394623589040

素因数分解:

$2^4\times 5^1\times {\mathrm{4932794863}}^1$

素因数の和:4932794876

約数の個数: 20

約数和(自身を含む): 917499844704

約数和(自身を除く): 522876255664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4932794863, 9865589726, 19731179452, 24663974315, 39462358904, 49327948630, 78924717808, 98655897260, 197311794520, 394623589040]

約数ペア:

[(1, 394623589040), (2, 197311794520), (4, 98655897260), (5, 78924717808), (8, 49327948630), (10, 39462358904), (16, 24663974315), (20, 19731179452), (40, 9865589726), (80, 4932794863)]