638441778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{6491}}^1$

素因数の和:6619

約数の個数: 48

約数和(自身を含む): 1397130336

約数和(自身を除く): 758688558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 97, 169, 194, 291, 338, 507, 582, 1014, 1261, 2522, 3783, 6491, 7566, 12982, 16393, 19473, 32786, 38946, 49179, 84383, 98358, 168766, 253149, 506298, 629627, 1096979, 1259254, 1888881, 2193958, 3290937, 3777762, 6581874, 8185151, 16370302, 24555453, 49110906, 106406963, 212813926, 319220889, 638441778]

約数ペア:

[(1, 638441778), (2, 319220889), (3, 212813926), (6, 106406963), (13, 49110906), (26, 24555453), (39, 16370302), (78, 8185151), (97, 6581874), (169, 3777762), (194, 3290937), (291, 2193958), (338, 1888881), (507, 1259254), (582, 1096979), (1014, 629627), (1261, 506298), (2522, 253149), (3783, 168766), (6491, 98358), (7566, 84383), (12982, 49179), (16393, 38946), (19473, 32786)]