256697880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2139149}}^1$

素因数の和:2139163

約数の個数: 32

約数和(自身を含む): 770094000

約数和(自身を除く): 513396120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2139149, 4278298, 6417447, 8556596, 10695745, 12834894, 17113192, 21391490, 25669788, 32087235, 42782980, 51339576, 64174470, 85565960, 128348940, 256697880]

約数ペア:

[(1, 256697880), (2, 128348940), (3, 85565960), (4, 64174470), (5, 51339576), (6, 42782980), (8, 32087235), (10, 25669788), (12, 21391490), (15, 17113192), (20, 12834894), (24, 10695745), (30, 8556596), (40, 6417447), (60, 4278298), (120, 2139149)]