172808080

素因数分解:

$2^4\times 5^1\times {\mathrm{2160101}}^1$

素因数の和:2160114

約数の個数: 20

約数和(自身を含む): 401778972

約数和(自身を除く): 228970892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2160101, 4320202, 8640404, 10800505, 17280808, 21601010, 34561616, 43202020, 86404040, 172808080]

約数ペア:

[(1, 172808080), (2, 86404040), (4, 43202020), (5, 34561616), (8, 21601010), (10, 17280808), (16, 10800505), (20, 8640404), (40, 4320202), (80, 2160101)]