13440520

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1741}}^1$

素因数の和:1945

約数の個数: 32

約数和(自身を含む): 30415320

約数和(自身を除く): 16974800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1741, 1930, 3482, 3860, 6964, 7720, 8705, 13928, 17410, 34820, 69640, 336013, 672026, 1344052, 1680065, 2688104, 3360130, 6720260, 13440520]

約数ペア:

[(1, 13440520), (2, 6720260), (4, 3360130), (5, 2688104), (8, 1680065), (10, 1344052), (20, 672026), (40, 336013), (193, 69640), (386, 34820), (772, 17410), (965, 13928), (1544, 8705), (1741, 7720), (1930, 6964), (3482, 3860)]