2147300

素因数分解:

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

素因数の和:320

約数の個数: 36

約数和(自身を含む): 4726260

約数和(自身を除く): 2578960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 197, 218, 394, 436, 545, 788, 985, 1090, 1970, 2180, 2725, 3940, 4925, 5450, 9850, 10900, 19700, 21473, 42946, 85892, 107365, 214730, 429460, 536825, 1073650, 2147300]

約数ペア:

[(1, 2147300), (2, 1073650), (4, 536825), (5, 429460), (10, 214730), (20, 107365), (25, 85892), (50, 42946), (100, 21473), (109, 19700), (197, 10900), (218, 9850), (394, 5450), (436, 4925), (545, 3940), (788, 2725), (985, 2180), (1090, 1970)]