256404015

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{467}}^1$

素因数の和:578

約数の個数: 96

約数和(自身を含む): 537788160

約数和(自身を除く): 281384145

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 83, 105, 135, 147, 189, 245, 249, 315, 415, 441, 467, 581, 735, 747, 945, 1245, 1323, 1401, 1743, 2205, 2241, 2335, 2905, 3269, 3735, 4067, 4203, 5229, 6615, 7005, 8715, 9807, 11205, 12201, 12609, 15687, 16345, 20335, 21015, 22883, 26145, 29421, 36603, 38761, 49035, 61005, 63045, 68649, 78435, 88263, 109809, 114415, 116283, 147105, 183015, 193805, 205947, 271327, 343245, 348849, 441315, 549045, 581415, 617841, 813981, 1029735, 1046547, 1356635, 1744245, 1899289, 2441943, 3089205, 4069905, 5232735, 5697867, 7325829, 9496445, 12209715, 17093601, 28489335, 36629145, 51280803, 85468005, 256404015]

約数ペア:

[(1, 256404015), (3, 85468005), (5, 51280803), (7, 36629145), (9, 28489335), (15, 17093601), (21, 12209715), (27, 9496445), (35, 7325829), (45, 5697867), (49, 5232735), (63, 4069905), (83, 3089205), (105, 2441943), (135, 1899289), (147, 1744245), (189, 1356635), (245, 1046547), (249, 1029735), (315, 813981), (415, 617841), (441, 581415), (467, 549045), (581, 441315), (735, 348849), (747, 343245), (945, 271327), (1245, 205947), (1323, 193805), (1401, 183015), (1743, 147105), (2205, 116283), (2241, 114415), (2335, 109809), (2905, 88263), (3269, 78435), (3735, 68649), (4067, 63045), (4203, 61005), (5229, 49035), (6615, 38761), (7005, 36603), (8715, 29421), (9807, 26145), (11205, 22883), (12201, 21015), (12609, 20335), (15687, 16345)]