81286996

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 91685804

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 389, 439, 476, 778, 878, 1556, 1756, 2723, 3073, 5446, 6146, 6613, 7463, 10892, 12292, 13226, 14926, 26452, 29852, 46291, 52241, 92582, 104482, 170771, 185164, 208964, 341542, 683084, 1195397, 2390794, 2903107, 4781588, 5806214, 11612428, 20321749, 40643498, 81286996]

約数ペア:

[(1, 81286996), (2, 40643498), (4, 20321749), (7, 11612428), (14, 5806214), (17, 4781588), (28, 2903107), (34, 2390794), (68, 1195397), (119, 683084), (238, 341542), (389, 208964), (439, 185164), (476, 170771), (778, 104482), (878, 92582), (1556, 52241), (1756, 46291), (2723, 29852), (3073, 26452), (5446, 14926), (6146, 13226), (6613, 12292), (7463, 10892)]