81138875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{38183}}^1$

素因数の和:38215

約数の個数: 16

約数和(自身を含む): 107220672

約数和(自身を除く): 26081797

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 38183, 190915, 649111, 954575, 3245555, 4772875, 16227775, 81138875]

約数ペア:

[(1, 81138875), (5, 16227775), (17, 4772875), (25, 3245555), (85, 954575), (125, 649111), (425, 190915), (2125, 38183)]