20342450

素因数分解:

$2^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{971}}^1$

素因数の和:1402

約数の個数: 24

約数和(自身を含む): 37966320

約数和(自身を除く): 17623870

約数列:

[1, 2, 5, 10, 25, 50, 419, 838, 971, 1942, 2095, 4190, 4855, 9710, 10475, 20950, 24275, 48550, 406849, 813698, 2034245, 4068490, 10171225, 20342450]

約数ペア:

[(1, 20342450), (2, 10171225), (5, 4068490), (10, 2034245), (25, 813698), (50, 406849), (419, 48550), (838, 24275), (971, 20950), (1942, 10475), (2095, 9710), (4190, 4855)]