19428800

素因数分解:

$2^6\times 5^2\times {\mathrm{12143}}^1$

素因数の和:12165

約数の個数: 42

約数和(自身を含む): 47810928

約数和(自身を除く): 28382128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12143, 24286, 48572, 60715, 97144, 121430, 194288, 242860, 303575, 388576, 485720, 607150, 777152, 971440, 1214300, 1942880, 2428600, 3885760, 4857200, 9714400, 19428800]

約数ペア:

[(1, 19428800), (2, 9714400), (4, 4857200), (5, 3885760), (8, 2428600), (10, 1942880), (16, 1214300), (20, 971440), (25, 777152), (32, 607150), (40, 485720), (50, 388576), (64, 303575), (80, 242860), (100, 194288), (160, 121430), (200, 97144), (320, 60715), (400, 48572), (800, 24286), (1600, 12143)]