263721008080

素因数分解:

$2^4\times 5^1\times {\mathrm{3296512601}}^1$

素因数の和:3296512614

約数の個数: 20

約数和(自身を含む): 613151343972

約数和(自身を除く): 349430335892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3296512601, 6593025202, 13186050404, 16482563005, 26372100808, 32965126010, 52744201616, 65930252020, 131860504040, 263721008080]

約数ペア:

[(1, 263721008080), (2, 131860504040), (4, 65930252020), (5, 52744201616), (8, 32965126010), (10, 26372100808), (16, 16482563005), (20, 13186050404), (40, 6593025202), (80, 3296512601)]