8940080

素因数分解:

$2^4\times 5^1\times {\mathrm{111751}}^1$

素因数の和:111764

約数の個数: 20

約数和(自身を含む): 20785872

約数和(自身を除く): 11845792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111751, 223502, 447004, 558755, 894008, 1117510, 1788016, 2235020, 4470040, 8940080]

約数ペア:

[(1, 8940080), (2, 4470040), (4, 2235020), (5, 1788016), (8, 1117510), (10, 894008), (16, 558755), (20, 447004), (40, 223502), (80, 111751)]