13246280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 30703860

約数和(自身を除く): 17457580

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 197, 205, 328, 394, 410, 788, 820, 985, 1576, 1640, 1681, 1970, 3362, 3940, 6724, 7880, 8077, 8405, 13448, 16154, 16810, 32308, 33620, 40385, 64616, 67240, 80770, 161540, 323080, 331157, 662314, 1324628, 1655785, 2649256, 3311570, 6623140, 13246280]

約数ペア:

[(1, 13246280), (2, 6623140), (4, 3311570), (5, 2649256), (8, 1655785), (10, 1324628), (20, 662314), (40, 331157), (41, 323080), (82, 161540), (164, 80770), (197, 67240), (205, 64616), (328, 40385), (394, 33620), (410, 32308), (788, 16810), (820, 16154), (985, 13448), (1576, 8405), (1640, 8077), (1681, 7880), (1970, 6724), (3362, 3940)]