80011640

素因数分解:

$2^3\times 5^1\times {\mathrm{2000291}}^1$

素因数の和:2000302

約数の個数: 16

約数和(自身を含む): 180026280

約数和(自身を除く): 100014640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2000291, 4000582, 8001164, 10001455, 16002328, 20002910, 40005820, 80011640]

約数ペア:

[(1, 80011640), (2, 40005820), (4, 20002910), (5, 16002328), (8, 10001455), (10, 8001164), (20, 4000582), (40, 2000291)]