1247704375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{117431}}^1$

素因数の和:117468

約数の個数: 20

約数和(自身を含む): 1650859056

約数和(自身を除く): 403154681

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 10625, 117431, 587155, 1996327, 2935775, 9981635, 14678875, 49908175, 73394375, 249540875, 1247704375]

約数ペア:

[(1, 1247704375), (5, 249540875), (17, 73394375), (25, 49908175), (85, 14678875), (125, 9981635), (425, 2935775), (625, 1996327), (2125, 587155), (10625, 117431)]