13661360

素因数分解:

$2^4\times 5^1\times {\mathrm{170767}}^1$

素因数の和:170780

約数の個数: 20

約数和(自身を含む): 31762848

約数和(自身を除く): 18101488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 170767, 341534, 683068, 853835, 1366136, 1707670, 2732272, 3415340, 6830680, 13661360]

約数ペア:

[(1, 13661360), (2, 6830680), (4, 3415340), (5, 2732272), (8, 1707670), (10, 1366136), (16, 853835), (20, 683068), (40, 341534), (80, 170767)]