181561086040

素因数分解:

$2^3\times 5^1\times {\mathrm{4539027151}}^1$

素因数の和:4539027162

約数の個数: 16

約数和(自身を含む): 408512443680

約数和(自身を除く): 226951357640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4539027151, 9078054302, 18156108604, 22695135755, 36312217208, 45390271510, 90780543020, 181561086040]

約数ペア:

[(1, 181561086040), (2, 90780543020), (4, 45390271510), (5, 36312217208), (8, 22695135755), (10, 18156108604), (20, 9078054302), (40, 4539027151)]