18944375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{1783}}^1$

素因数の和:1820

約数の個数: 20

約数和(自身を含む): 25079472

約数和(自身を除く): 6135097

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 1783, 2125, 8915, 10625, 30311, 44575, 151555, 222875, 757775, 1114375, 3788875, 18944375]

約数ペア:

[(1, 18944375), (5, 3788875), (17, 1114375), (25, 757775), (85, 222875), (125, 151555), (425, 44575), (625, 30311), (1783, 10625), (2125, 8915)]