81279875

素因数分解:

$5^3\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 105131520

約数和(自身を除く): 23851645

約数列:

[1, 5, 25, 59, 103, 107, 125, 295, 515, 535, 1475, 2575, 2675, 6077, 6313, 7375, 11021, 12875, 13375, 30385, 31565, 55105, 151925, 157825, 275525, 650239, 759625, 789125, 1377625, 3251195, 16255975, 81279875]

約数ペア:

[(1, 81279875), (5, 16255975), (25, 3251195), (59, 1377625), (103, 789125), (107, 759625), (125, 650239), (295, 275525), (515, 157825), (535, 151925), (1475, 55105), (2575, 31565), (2675, 30385), (6077, 13375), (6313, 12875), (7375, 11021)]