28294520

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{2099}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 63882000

約数和(自身を除く): 35587480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1685, 2099, 2696, 3370, 4198, 6740, 8396, 10495, 13480, 16792, 20990, 41980, 83960, 707363, 1414726, 2829452, 3536815, 5658904, 7073630, 14147260, 28294520]

約数ペア:

[(1, 28294520), (2, 14147260), (4, 7073630), (5, 5658904), (8, 3536815), (10, 2829452), (20, 1414726), (40, 707363), (337, 83960), (674, 41980), (1348, 20990), (1685, 16792), (2099, 13480), (2696, 10495), (3370, 8396), (4198, 6740)]