19928000

素因数分解:

$2^6\times 5^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:127

約数の個数: 112

約数和(自身を含む): 51352704

約数和(自身を除く): 31424704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 53, 64, 80, 94, 100, 106, 125, 160, 188, 200, 212, 235, 250, 265, 320, 376, 400, 424, 470, 500, 530, 752, 800, 848, 940, 1000, 1060, 1175, 1325, 1504, 1600, 1696, 1880, 2000, 2120, 2350, 2491, 2650, 3008, 3392, 3760, 4000, 4240, 4700, 4982, 5300, 5875, 6625, 7520, 8000, 8480, 9400, 9964, 10600, 11750, 12455, 13250, 15040, 16960, 18800, 19928, 21200, 23500, 24910, 26500, 37600, 39856, 42400, 47000, 49820, 53000, 62275, 75200, 79712, 84800, 94000, 99640, 106000, 124550, 159424, 188000, 199280, 212000, 249100, 311375, 376000, 398560, 424000, 498200, 622750, 797120, 996400, 1245500, 1992800, 2491000, 3985600, 4982000, 9964000, 19928000]

約数ペア:

[(1, 19928000), (2, 9964000), (4, 4982000), (5, 3985600), (8, 2491000), (10, 1992800), (16, 1245500), (20, 996400), (25, 797120), (32, 622750), (40, 498200), (47, 424000), (50, 398560), (53, 376000), (64, 311375), (80, 249100), (94, 212000), (100, 199280), (106, 188000), (125, 159424), (160, 124550), (188, 106000), (200, 99640), (212, 94000), (235, 84800), (250, 79712), (265, 75200), (320, 62275), (376, 53000), (400, 49820), (424, 47000), (470, 42400), (500, 39856), (530, 37600), (752, 26500), (800, 24910), (848, 23500), (940, 21200), (1000, 19928), (1060, 18800), (1175, 16960), (1325, 15040), (1504, 13250), (1600, 12455), (1696, 11750), (1880, 10600), (2000, 9964), (2120, 9400), (2350, 8480), (2491, 8000), (2650, 7520), (3008, 6625), (3392, 5875), (3760, 5300), (4000, 4982), (4240, 4700)]