31015556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 66284064

約数和(自身を除く): 35268508

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 97, 143, 169, 172, 194, 286, 338, 388, 473, 559, 572, 676, 946, 1067, 1118, 1261, 1859, 1892, 2134, 2236, 2522, 3718, 4171, 4268, 5044, 6149, 7267, 7436, 8342, 12298, 13871, 14534, 16393, 16684, 24596, 27742, 29068, 32786, 45881, 54223, 55484, 65572, 79937, 91762, 108446, 159874, 180323, 183524, 216892, 319748, 360646, 596453, 704899, 721292, 1192906, 1409798, 2385812, 2819596, 7753889, 15507778, 31015556]

約数ペア:

[(1, 31015556), (2, 15507778), (4, 7753889), (11, 2819596), (13, 2385812), (22, 1409798), (26, 1192906), (43, 721292), (44, 704899), (52, 596453), (86, 360646), (97, 319748), (143, 216892), (169, 183524), (172, 180323), (194, 159874), (286, 108446), (338, 91762), (388, 79937), (473, 65572), (559, 55484), (572, 54223), (676, 45881), (946, 32786), (1067, 29068), (1118, 27742), (1261, 24596), (1859, 16684), (1892, 16393), (2134, 14534), (2236, 13871), (2522, 12298), (3718, 8342), (4171, 7436), (4268, 7267), (5044, 6149)]