78968253

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 139464864

約数和(自身を除く): 60496611

約数列:

[1, 3, 7, 13, 21, 31, 39, 43, 49, 91, 93, 129, 147, 217, 273, 301, 403, 559, 637, 651, 903, 961, 1209, 1333, 1519, 1677, 1911, 2107, 2821, 2883, 3913, 3999, 4557, 6321, 6727, 8463, 9331, 11739, 12493, 17329, 19747, 20181, 27391, 27993, 37479, 41323, 47089, 51987, 59241, 65317, 82173, 87451, 121303, 123969, 141267, 195951, 262353, 289261, 363909, 537199, 612157, 849121, 867783, 1611597, 1836471, 2024827, 2547363, 3760393, 6074481, 11281179, 26322751, 78968253]

約数ペア:

[(1, 78968253), (3, 26322751), (7, 11281179), (13, 6074481), (21, 3760393), (31, 2547363), (39, 2024827), (43, 1836471), (49, 1611597), (91, 867783), (93, 849121), (129, 612157), (147, 537199), (217, 363909), (273, 289261), (301, 262353), (403, 195951), (559, 141267), (637, 123969), (651, 121303), (903, 87451), (961, 82173), (1209, 65317), (1333, 59241), (1519, 51987), (1677, 47089), (1911, 41323), (2107, 37479), (2821, 27993), (2883, 27391), (3913, 20181), (3999, 19747), (4557, 17329), (6321, 12493), (6727, 11739), (8463, 9331)]