861655216

素因数分解:

$2^4\times {\mathrm{1319}}^1\times {\mathrm{40829}}^1$

素因数の和:42156

約数の個数: 20

約数和(自身を含む): 1670763600

約数和(自身を除く): 809108384

約数列:

[1, 2, 4, 8, 16, 1319, 2638, 5276, 10552, 21104, 40829, 81658, 163316, 326632, 653264, 53853451, 107706902, 215413804, 430827608, 861655216]

約数ペア:

[(1, 861655216), (2, 430827608), (4, 215413804), (8, 107706902), (16, 53853451), (1319, 653264), (2638, 326632), (5276, 163316), (10552, 81658), (21104, 40829)]