80172760

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{7451}}^1$

素因数の和:7731

約数の個数: 32

約数和(自身を含む): 181083600

約数和(自身を除く): 100910840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 7451, 10760, 14902, 29804, 37255, 59608, 74510, 149020, 298040, 2004319, 4008638, 8017276, 10021595, 16034552, 20043190, 40086380, 80172760]

約数ペア:

[(1, 80172760), (2, 40086380), (4, 20043190), (5, 16034552), (8, 10021595), (10, 8017276), (20, 4008638), (40, 2004319), (269, 298040), (538, 149020), (1076, 74510), (1345, 59608), (2152, 37255), (2690, 29804), (5380, 14902), (7451, 10760)]