80780360

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{2351}}^1$

素因数の和:3221

約数の個数: 32

約数和(自身を含む): 182044800

約数和(自身を除く): 101264440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 2351, 3436, 4295, 4702, 6872, 8590, 9404, 11755, 17180, 18808, 23510, 34360, 47020, 94040, 2019509, 4039018, 8078036, 10097545, 16156072, 20195090, 40390180, 80780360]

約数ペア:

[(1, 80780360), (2, 40390180), (4, 20195090), (5, 16156072), (8, 10097545), (10, 8078036), (20, 4039018), (40, 2019509), (859, 94040), (1718, 47020), (2351, 34360), (3436, 23510), (4295, 18808), (4702, 17180), (6872, 11755), (8590, 9404)]