20780480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9277}}^1$

素因数の和:9301

約数の個数: 56

約数和(自身を含む): 56558688

約数和(自身を除く): 35778208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9277, 18554, 37108, 46385, 64939, 74216, 92770, 129878, 148432, 185540, 259756, 296864, 324695, 371080, 519512, 593728, 649390, 742160, 1039024, 1298780, 1484320, 2078048, 2597560, 2968640, 4156096, 5195120, 10390240, 20780480]

約数ペア:

[(1, 20780480), (2, 10390240), (4, 5195120), (5, 4156096), (7, 2968640), (8, 2597560), (10, 2078048), (14, 1484320), (16, 1298780), (20, 1039024), (28, 742160), (32, 649390), (35, 593728), (40, 519512), (56, 371080), (64, 324695), (70, 296864), (80, 259756), (112, 185540), (140, 148432), (160, 129878), (224, 92770), (280, 74216), (320, 64939), (448, 46385), (560, 37108), (1120, 18554), (2240, 9277)]