19307405

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 25513128

約数和(自身を除く): 6205723

約数列:

[1, 5, 13, 65, 73, 169, 313, 365, 845, 949, 1565, 4069, 4745, 12337, 20345, 22849, 52897, 61685, 114245, 264485, 297037, 1485185, 3861481, 19307405]

約数ペア:

[(1, 19307405), (5, 3861481), (13, 1485185), (65, 297037), (73, 264485), (169, 114245), (313, 61685), (365, 52897), (845, 22849), (949, 20345), (1565, 12337), (4069, 4745)]