199683875

素因数分解:

$5^3\times {\mathrm{1249}}^1\times {\mathrm{1279}}^1$

素因数の和:2543

約数の個数: 16

約数和(自身を含む): 249600000

約数和(自身を除く): 49916125

約数列:

[1, 5, 25, 125, 1249, 1279, 6245, 6395, 31225, 31975, 156125, 159875, 1597471, 7987355, 39936775, 199683875]

約数ペア:

[(1, 199683875), (5, 39936775), (25, 7987355), (125, 1597471), (1249, 159875), (1279, 156125), (6245, 31975), (6395, 31225)]