39950000

素因数分解:

$2^4\times 5^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:97

約数の個数: 120

約数和(自身を含む): 104618304

約数和(自身を除く): 64668304

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 47, 50, 68, 80, 85, 94, 100, 125, 136, 170, 188, 200, 235, 250, 272, 340, 376, 400, 425, 470, 500, 625, 680, 752, 799, 850, 940, 1000, 1175, 1250, 1360, 1598, 1700, 1880, 2000, 2125, 2350, 2500, 3125, 3196, 3400, 3760, 3995, 4250, 4700, 5000, 5875, 6250, 6392, 6800, 7990, 8500, 9400, 10000, 10625, 11750, 12500, 12784, 15980, 17000, 18800, 19975, 21250, 23500, 25000, 29375, 31960, 34000, 39950, 42500, 47000, 50000, 53125, 58750, 63920, 79900, 85000, 94000, 99875, 106250, 117500, 146875, 159800, 170000, 199750, 212500, 235000, 293750, 319600, 399500, 425000, 470000, 499375, 587500, 799000, 850000, 998750, 1175000, 1598000, 1997500, 2350000, 2496875, 3995000, 4993750, 7990000, 9987500, 19975000, 39950000]

約数ペア:

[(1, 39950000), (2, 19975000), (4, 9987500), (5, 7990000), (8, 4993750), (10, 3995000), (16, 2496875), (17, 2350000), (20, 1997500), (25, 1598000), (34, 1175000), (40, 998750), (47, 850000), (50, 799000), (68, 587500), (80, 499375), (85, 470000), (94, 425000), (100, 399500), (125, 319600), (136, 293750), (170, 235000), (188, 212500), (200, 199750), (235, 170000), (250, 159800), (272, 146875), (340, 117500), (376, 106250), (400, 99875), (425, 94000), (470, 85000), (500, 79900), (625, 63920), (680, 58750), (752, 53125), (799, 50000), (850, 47000), (940, 42500), (1000, 39950), (1175, 34000), (1250, 31960), (1360, 29375), (1598, 25000), (1700, 23500), (1880, 21250), (2000, 19975), (2125, 18800), (2350, 17000), (2500, 15980), (3125, 12784), (3196, 12500), (3400, 11750), (3760, 10625), (3995, 10000), (4250, 9400), (4700, 8500), (5000, 7990), (5875, 6800), (6250, 6392)]