678284495

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2\times {\mathrm{283}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 984557568

約数和(自身を除く): 306273073

約数列:

[1, 5, 7, 31, 35, 47, 155, 217, 235, 283, 329, 1085, 1415, 1457, 1645, 1981, 2209, 7285, 8773, 9905, 10199, 11045, 13301, 15463, 43865, 50995, 61411, 66505, 68479, 77315, 93107, 307055, 342395, 412331, 465535, 479353, 625147, 2061655, 2396765, 2886317, 3125735, 4376029, 14431585, 19379557, 21880145, 96897785, 135656899, 678284495]

約数ペア:

[(1, 678284495), (5, 135656899), (7, 96897785), (31, 21880145), (35, 19379557), (47, 14431585), (155, 4376029), (217, 3125735), (235, 2886317), (283, 2396765), (329, 2061655), (1085, 625147), (1415, 479353), (1457, 465535), (1645, 412331), (1981, 342395), (2209, 307055), (7285, 93107), (8773, 77315), (9905, 68479), (10199, 66505), (11045, 61411), (13301, 50995), (15463, 43865)]