80876440

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3541}}^1$

素因数の和:4123

約数の個数: 32

約数和(自身を含む): 182342160

約数和(自身を除く): 101465720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 3541, 4568, 5710, 7082, 11420, 14164, 17705, 22840, 28328, 35410, 70820, 141640, 2021911, 4043822, 8087644, 10109555, 16175288, 20219110, 40438220, 80876440]

約数ペア:

[(1, 80876440), (2, 40438220), (4, 20219110), (5, 16175288), (8, 10109555), (10, 8087644), (20, 4043822), (40, 2021911), (571, 141640), (1142, 70820), (2284, 35410), (2855, 28328), (3541, 22840), (4568, 17705), (5710, 14164), (7082, 11420)]