28167555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 53343360

約数和(自身を除く): 25175805

約数列:

[1, 3, 5, 13, 15, 17, 29, 39, 51, 65, 85, 87, 145, 195, 221, 255, 293, 377, 435, 493, 663, 879, 1105, 1131, 1465, 1479, 1885, 2465, 3315, 3809, 4395, 4981, 5655, 6409, 7395, 8497, 11427, 14943, 19045, 19227, 24905, 25491, 32045, 42485, 57135, 64753, 74715, 96135, 110461, 127455, 144449, 194259, 323765, 331383, 433347, 552305, 722245, 971295, 1656915, 1877837, 2166735, 5633511, 9389185, 28167555]

約数ペア:

[(1, 28167555), (3, 9389185), (5, 5633511), (13, 2166735), (15, 1877837), (17, 1656915), (29, 971295), (39, 722245), (51, 552305), (65, 433347), (85, 331383), (87, 323765), (145, 194259), (195, 144449), (221, 127455), (255, 110461), (293, 96135), (377, 74715), (435, 64753), (493, 57135), (663, 42485), (879, 32045), (1105, 25491), (1131, 24905), (1465, 19227), (1479, 19045), (1885, 14943), (2465, 11427), (3315, 8497), (3809, 7395), (4395, 6409), (4981, 5655)]