401339939

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 570576384

約数和(自身を除く): 169236445

約数列:

[1, 7, 11, 13, 41, 49, 77, 91, 121, 127, 143, 287, 451, 533, 539, 637, 847, 889, 1001, 1397, 1573, 1651, 2009, 3157, 3731, 4961, 5207, 5863, 5929, 6223, 7007, 9779, 11011, 11557, 15367, 18161, 22099, 26117, 34727, 36449, 41041, 57277, 64493, 67691, 68453, 77077, 80899, 107569, 127127, 199771, 243089, 255143, 287287, 400939, 451451, 473837, 630047, 744601, 752983, 889889, 1398397, 2806573, 3160157, 3316859, 4410329, 5212207, 8190611, 9788779, 30872303, 36485449, 57334277, 401339939]

約数ペア:

[(1, 401339939), (7, 57334277), (11, 36485449), (13, 30872303), (41, 9788779), (49, 8190611), (77, 5212207), (91, 4410329), (121, 3316859), (127, 3160157), (143, 2806573), (287, 1398397), (451, 889889), (533, 752983), (539, 744601), (637, 630047), (847, 473837), (889, 451451), (1001, 400939), (1397, 287287), (1573, 255143), (1651, 243089), (2009, 199771), (3157, 127127), (3731, 107569), (4961, 80899), (5207, 77077), (5863, 68453), (5929, 67691), (6223, 64493), (7007, 57277), (9779, 41041), (11011, 36449), (11557, 34727), (15367, 26117), (18161, 22099)]