2013403405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{720359}}^1$

素因数の和:720420

約数の個数: 16

約数和(自身を含む): 2662450560

約数和(自身を除く): 649047155

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 720359, 3601795, 9364667, 30975437, 46823335, 154877185, 402680681, 2013403405]

約数ペア:

[(1, 2013403405), (5, 402680681), (13, 154877185), (43, 46823335), (65, 30975437), (215, 9364667), (559, 3601795), (2795, 720359)]