20400146

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 34328448

約数和(自身を除く): 13928302

約数列:

[1, 2, 13, 26, 43, 71, 86, 142, 257, 514, 559, 923, 1118, 1846, 3053, 3341, 6106, 6682, 11051, 18247, 22102, 36494, 39689, 79378, 143663, 237211, 287326, 474422, 784621, 1569242, 10200073, 20400146]

約数ペア:

[(1, 20400146), (2, 10200073), (13, 1569242), (26, 784621), (43, 474422), (71, 287326), (86, 237211), (142, 143663), (257, 79378), (514, 39689), (559, 36494), (923, 22102), (1118, 18247), (1846, 11051), (3053, 6682), (3341, 6106)]