8245000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 20665260

約数和(自身を除く): 12420260

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 97, 100, 125, 136, 170, 194, 200, 250, 340, 388, 425, 485, 500, 625, 680, 776, 850, 970, 1000, 1250, 1649, 1700, 1940, 2125, 2425, 2500, 3298, 3400, 3880, 4250, 4850, 5000, 6596, 8245, 8500, 9700, 10625, 12125, 13192, 16490, 17000, 19400, 21250, 24250, 32980, 41225, 42500, 48500, 60625, 65960, 82450, 85000, 97000, 121250, 164900, 206125, 242500, 329800, 412250, 485000, 824500, 1030625, 1649000, 2061250, 4122500, 8245000]

約数ペア:

[(1, 8245000), (2, 4122500), (4, 2061250), (5, 1649000), (8, 1030625), (10, 824500), (17, 485000), (20, 412250), (25, 329800), (34, 242500), (40, 206125), (50, 164900), (68, 121250), (85, 97000), (97, 85000), (100, 82450), (125, 65960), (136, 60625), (170, 48500), (194, 42500), (200, 41225), (250, 32980), (340, 24250), (388, 21250), (425, 19400), (485, 17000), (500, 16490), (625, 13192), (680, 12125), (776, 10625), (850, 9700), (970, 8500), (1000, 8245), (1250, 6596), (1649, 5000), (1700, 4850), (1940, 4250), (2125, 3880), (2425, 3400), (2500, 3298)]