20604800

素因数分解:

$2^7\times 5^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 52362720

約数和(自身を除く): 31757920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 128, 137, 160, 188, 200, 235, 274, 320, 376, 400, 470, 548, 640, 685, 752, 800, 940, 1096, 1175, 1370, 1504, 1600, 1880, 2192, 2350, 2740, 3008, 3200, 3425, 3760, 4384, 4700, 5480, 6016, 6439, 6850, 7520, 8768, 9400, 10960, 12878, 13700, 15040, 17536, 18800, 21920, 25756, 27400, 30080, 32195, 37600, 43840, 51512, 54800, 64390, 75200, 87680, 103024, 109600, 128780, 150400, 160975, 206048, 219200, 257560, 321950, 412096, 438400, 515120, 643900, 824192, 1030240, 1287800, 2060480, 2575600, 4120960, 5151200, 10302400, 20604800]

約数ペア:

[(1, 20604800), (2, 10302400), (4, 5151200), (5, 4120960), (8, 2575600), (10, 2060480), (16, 1287800), (20, 1030240), (25, 824192), (32, 643900), (40, 515120), (47, 438400), (50, 412096), (64, 321950), (80, 257560), (94, 219200), (100, 206048), (128, 160975), (137, 150400), (160, 128780), (188, 109600), (200, 103024), (235, 87680), (274, 75200), (320, 64390), (376, 54800), (400, 51512), (470, 43840), (548, 37600), (640, 32195), (685, 30080), (752, 27400), (800, 25756), (940, 21920), (1096, 18800), (1175, 17536), (1370, 15040), (1504, 13700), (1600, 12878), (1880, 10960), (2192, 9400), (2350, 8768), (2740, 7520), (3008, 6850), (3200, 6439), (3425, 6016), (3760, 5480), (4384, 4700)]