31704880

素因数分解:

$2^4\times 5^1\times {\mathrm{396311}}^1$

素因数の和:396324

約数の個数: 20

約数和(自身を含む): 73714032

約数和(自身を除く): 42009152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 396311, 792622, 1585244, 1981555, 3170488, 3963110, 6340976, 7926220, 15852440, 31704880]

約数ペア:

[(1, 31704880), (2, 15852440), (4, 7926220), (5, 6340976), (8, 3963110), (10, 3170488), (16, 1981555), (20, 1585244), (40, 792622), (80, 396311)]