31928080

素因数分解:

$2^4\times 5^1\times {\mathrm{399101}}^1$

素因数の和:399114

約数の個数: 20

約数和(自身を含む): 74232972

約数和(自身を除く): 42304892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399101, 798202, 1596404, 1995505, 3192808, 3991010, 6385616, 7982020, 15964040, 31928080]

約数ペア:

[(1, 31928080), (2, 15964040), (4, 7982020), (5, 6385616), (8, 3991010), (10, 3192808), (16, 1995505), (20, 1596404), (40, 798202), (80, 399101)]