2891572305

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{178327}}^1$

素因数の和:178405

約数の個数: 32

約数和(自身を含む): 4930412544

約数和(自身を除く): 2038840239

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 3243, 5405, 16215, 178327, 534981, 891635, 2674905, 4101521, 8381369, 12304563, 20507605, 25144107, 41906845, 61522815, 125720535, 192771487, 578314461, 963857435, 2891572305]

約数ペア:

[(1, 2891572305), (3, 963857435), (5, 578314461), (15, 192771487), (23, 125720535), (47, 61522815), (69, 41906845), (115, 25144107), (141, 20507605), (235, 12304563), (345, 8381369), (705, 4101521), (1081, 2674905), (3243, 891635), (5405, 534981), (16215, 178327)]