156780080

素因数分解:

$2^4\times 5^1\times {\mathrm{1959751}}^1$

素因数の和:1959764

約数の個数: 20

約数和(自身を含む): 364513872

約数和(自身を除く): 207733792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1959751, 3919502, 7839004, 9798755, 15678008, 19597510, 31356016, 39195020, 78390040, 156780080]

約数ペア:

[(1, 156780080), (2, 78390040), (4, 39195020), (5, 31356016), (8, 19597510), (10, 15678008), (16, 9798755), (20, 7839004), (40, 3919502), (80, 1959751)]