280154787

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1153}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 420979200

約数和(自身を除く): 140824413

約数列:

[1, 3, 11, 33, 37, 111, 199, 407, 597, 1153, 1221, 2189, 3459, 6567, 7363, 12683, 22089, 38049, 42661, 80993, 127983, 229447, 242979, 469271, 688341, 1407813, 2523917, 7571751, 8489539, 25468617, 93384929, 280154787]

約数ペア:

[(1, 280154787), (3, 93384929), (11, 25468617), (33, 8489539), (37, 7571751), (111, 2523917), (199, 1407813), (407, 688341), (597, 469271), (1153, 242979), (1221, 229447), (2189, 127983), (3459, 80993), (6567, 42661), (7363, 38049), (12683, 22089)]