20341615

素因数分解:

$5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 29520000

約数和(自身を除く): 9178385

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 343, 409, 1015, 1421, 1715, 2045, 2863, 7105, 9947, 11861, 14315, 20041, 49735, 59305, 83027, 100205, 140287, 415135, 581189, 701435, 2905945, 4068323, 20341615]

約数ペア:

[(1, 20341615), (5, 4068323), (7, 2905945), (29, 701435), (35, 581189), (49, 415135), (145, 140287), (203, 100205), (245, 83027), (343, 59305), (409, 49735), (1015, 20041), (1421, 14315), (1715, 11861), (2045, 9947), (2863, 7105)]