2019948760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{463291}}^1$

素因数の和:463411

約数の個数: 32

約数和(自身を含む): 4586590800

約数和(自身を除く): 2566642040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 463291, 926582, 1853164, 2316455, 3706328, 4632910, 9265820, 18531640, 50498719, 100997438, 201994876, 252493595, 403989752, 504987190, 1009974380, 2019948760]

約数ペア:

[(1, 2019948760), (2, 1009974380), (4, 504987190), (5, 403989752), (8, 252493595), (10, 201994876), (20, 100997438), (40, 50498719), (109, 18531640), (218, 9265820), (436, 4632910), (545, 3706328), (872, 2316455), (1090, 1853164), (2180, 926582), (4360, 463291)]