20256795

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1117}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 39067392

約数和(自身を除く): 18810597

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1117, 1209, 1395, 2015, 3351, 3627, 5585, 6045, 10053, 14521, 16755, 18135, 34627, 43563, 50265, 72605, 103881, 130689, 173135, 217815, 311643, 450151, 519405, 653445, 1350453, 1558215, 2250755, 4051359, 6752265, 20256795]

約数ペア:

[(1, 20256795), (3, 6752265), (5, 4051359), (9, 2250755), (13, 1558215), (15, 1350453), (31, 653445), (39, 519405), (45, 450151), (65, 311643), (93, 217815), (117, 173135), (155, 130689), (195, 103881), (279, 72605), (403, 50265), (465, 43563), (585, 34627), (1117, 18135), (1209, 16755), (1395, 14521), (2015, 10053), (3351, 6045), (3627, 5585)]