156828080

素因数分解:

$2^4\times 5^1\times {\mathrm{1960351}}^1$

素因数の和:1960364

約数の個数: 20

約数和(自身を含む): 364625472

約数和(自身を除く): 207797392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1960351, 3920702, 7841404, 9801755, 15682808, 19603510, 31365616, 39207020, 78414040, 156828080]

約数ペア:

[(1, 156828080), (2, 78414040), (4, 39207020), (5, 31365616), (8, 19603510), (10, 15682808), (16, 9801755), (20, 7841404), (40, 3920702), (80, 1960351)]