18135025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 24041120

約数和(自身を除く): 5906095

約数列:

[1, 5, 19, 25, 73, 95, 365, 475, 523, 1387, 1825, 2615, 6935, 9937, 13075, 34675, 38179, 49685, 190895, 248425, 725401, 954475, 3627005, 18135025]

約数ペア:

[(1, 18135025), (5, 3627005), (19, 954475), (25, 725401), (73, 248425), (95, 190895), (365, 49685), (475, 38179), (523, 34675), (1387, 13075), (1825, 9937), (2615, 6935)]