15912080

素因数分解:

$2^4\times 5^1\times {\mathrm{198901}}^1$

素因数の和:198914

約数の個数: 20

約数和(自身を含む): 36995772

約数和(自身を除く): 21083692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198901, 397802, 795604, 994505, 1591208, 1989010, 3182416, 3978020, 7956040, 15912080]

約数ペア:

[(1, 15912080), (2, 7956040), (4, 3978020), (5, 3182416), (8, 1989010), (10, 1591208), (16, 994505), (20, 795604), (40, 397802), (80, 198901)]