681502000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{8311}}^1$

素因数の和:8375

約数の個数: 80

約数和(自身を含む): 1688266944

約数和(自身を除く): 1006764944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 250, 328, 400, 410, 500, 656, 820, 1000, 1025, 1640, 2000, 2050, 3280, 4100, 5125, 8200, 8311, 10250, 16400, 16622, 20500, 33244, 41000, 41555, 66488, 82000, 83110, 132976, 166220, 207775, 332440, 340751, 415550, 664880, 681502, 831100, 1038875, 1363004, 1662200, 1703755, 2077750, 2726008, 3324400, 3407510, 4155500, 5452016, 6815020, 8311000, 8518775, 13630040, 16622000, 17037550, 27260080, 34075100, 42593875, 68150200, 85187750, 136300400, 170375500, 340751000, 681502000]

約数ペア:

[(1, 681502000), (2, 340751000), (4, 170375500), (5, 136300400), (8, 85187750), (10, 68150200), (16, 42593875), (20, 34075100), (25, 27260080), (40, 17037550), (41, 16622000), (50, 13630040), (80, 8518775), (82, 8311000), (100, 6815020), (125, 5452016), (164, 4155500), (200, 3407510), (205, 3324400), (250, 2726008), (328, 2077750), (400, 1703755), (410, 1662200), (500, 1363004), (656, 1038875), (820, 831100), (1000, 681502), (1025, 664880), (1640, 415550), (2000, 340751), (2050, 332440), (3280, 207775), (4100, 166220), (5125, 132976), (8200, 83110), (8311, 82000), (10250, 66488), (16400, 41555), (16622, 41000), (20500, 33244)]