2015998000

素因数分解:

$2^4\times 5^3\times {\mathrm{127}}^1\times {\mathrm{7937}}^1$

素因数の和:8087

約数の個数: 80

約数和(自身を含む): 4913685504

約数和(自身を除く): 2897687504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 127, 200, 250, 254, 400, 500, 508, 635, 1000, 1016, 1270, 2000, 2032, 2540, 3175, 5080, 6350, 7937, 10160, 12700, 15874, 15875, 25400, 31748, 31750, 39685, 50800, 63496, 63500, 79370, 126992, 127000, 158740, 198425, 254000, 317480, 396850, 634960, 793700, 992125, 1007999, 1587400, 1984250, 2015998, 3174800, 3968500, 4031996, 5039995, 7937000, 8063992, 10079990, 15874000, 16127984, 20159980, 25199975, 40319960, 50399950, 80639920, 100799900, 125999875, 201599800, 251999750, 403199600, 503999500, 1007999000, 2015998000]

約数ペア:

[(1, 2015998000), (2, 1007999000), (4, 503999500), (5, 403199600), (8, 251999750), (10, 201599800), (16, 125999875), (20, 100799900), (25, 80639920), (40, 50399950), (50, 40319960), (80, 25199975), (100, 20159980), (125, 16127984), (127, 15874000), (200, 10079990), (250, 8063992), (254, 7937000), (400, 5039995), (500, 4031996), (508, 3968500), (635, 3174800), (1000, 2015998), (1016, 1984250), (1270, 1587400), (2000, 1007999), (2032, 992125), (2540, 793700), (3175, 634960), (5080, 396850), (6350, 317480), (7937, 254000), (10160, 198425), (12700, 158740), (15874, 127000), (15875, 126992), (25400, 79370), (31748, 63500), (31750, 63496), (39685, 50800)]