51528080

素因数分解:

$2^4\times 5^1\times {\mathrm{644101}}^1$

素因数の和:644114

約数の個数: 20

約数和(自身を含む): 119802972

約数和(自身を除く): 68274892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644101, 1288202, 2576404, 3220505, 5152808, 6441010, 10305616, 12882020, 25764040, 51528080]

約数ペア:

[(1, 51528080), (2, 25764040), (4, 12882020), (5, 10305616), (8, 6441010), (10, 5152808), (16, 3220505), (20, 2576404), (40, 1288202), (80, 644101)]