2178274019375

素因数分解:

$5^4\times {\mathrm{317}}^1\times {\mathrm{10994443}}^1$

素因数の和:10994780

約数の個数: 20

約数和(自身を含む): 2730558122952

約数和(自身を除く): 552284103577

約数列:

[1, 5, 25, 125, 317, 625, 1585, 7925, 39625, 198125, 10994443, 54972215, 274861075, 1374305375, 3485238431, 6871526875, 17426192155, 87130960775, 435654803875, 2178274019375]

約数ペア:

[(1, 2178274019375), (5, 435654803875), (25, 87130960775), (125, 17426192155), (317, 6871526875), (625, 3485238431), (1585, 1374305375), (7925, 274861075), (39625, 54972215), (198125, 10994443)]