85462540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 182952000

約数和(自身を除く): 97489460

約数列:

[1, 2, 4, 5, 10, 20, 109, 197, 199, 218, 394, 398, 436, 545, 788, 796, 985, 995, 1090, 1970, 1990, 2180, 3940, 3980, 21473, 21691, 39203, 42946, 43382, 78406, 85892, 86764, 107365, 108455, 156812, 196015, 214730, 216910, 392030, 429460, 433820, 784060, 4273127, 8546254, 17092508, 21365635, 42731270, 85462540]

約数ペア:

[(1, 85462540), (2, 42731270), (4, 21365635), (5, 17092508), (10, 8546254), (20, 4273127), (109, 784060), (197, 433820), (199, 429460), (218, 392030), (394, 216910), (398, 214730), (436, 196015), (545, 156812), (788, 108455), (796, 107365), (985, 86764), (995, 85892), (1090, 78406), (1970, 43382), (1990, 42946), (2180, 39203), (3940, 21691), (3980, 21473)]