13400405

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{449}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 16588800

約数和(自身を除く): 3188395

約数列:

[1, 5, 47, 127, 235, 449, 635, 2245, 5969, 21103, 29845, 57023, 105515, 285115, 2680081, 13400405]

約数ペア:

[(1, 13400405), (5, 2680081), (47, 285115), (127, 105515), (235, 57023), (449, 29845), (635, 21103), (2245, 5969)]