13447780

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1321}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 28317240

約数和(自身を除く): 14869460

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1321, 2036, 2545, 2642, 5090, 5284, 6605, 10180, 13210, 26420, 672389, 1344778, 2689556, 3361945, 6723890, 13447780]

約数ペア:

[(1, 13447780), (2, 6723890), (4, 3361945), (5, 2689556), (10, 1344778), (20, 672389), (509, 26420), (1018, 13210), (1321, 10180), (2036, 6605), (2545, 5284), (2642, 5090)]