165780490840

素因数分解:

$2^3\times 5^1\times {\mathrm{4144512271}}^1$

素因数の和:4144512282

約数の個数: 16

約数和(自身を含む): 373006104480

約数和(自身を除く): 207225613640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4144512271, 8289024542, 16578049084, 20722561355, 33156098168, 41445122710, 82890245420, 165780490840]

約数ペア:

[(1, 165780490840), (2, 82890245420), (4, 41445122710), (5, 33156098168), (8, 20722561355), (10, 16578049084), (20, 8289024542), (40, 4144512271)]