256064571

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{8521}}^1$

素因数の和:8593

約数の個数: 40

約数和(自身を含む): 445461984

約数和(自身を除く): 189397413

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 3339, 4293, 8521, 10017, 25563, 30051, 59647, 76689, 178941, 230067, 451613, 536823, 690201, 1354839, 1610469, 3161291, 4064517, 4831407, 9483873, 12193551, 28451619, 36580653, 85354857, 256064571]

約数ペア:

[(1, 256064571), (3, 85354857), (7, 36580653), (9, 28451619), (21, 12193551), (27, 9483873), (53, 4831407), (63, 4064517), (81, 3161291), (159, 1610469), (189, 1354839), (371, 690201), (477, 536823), (567, 451613), (1113, 230067), (1431, 178941), (3339, 76689), (4293, 59647), (8521, 30051), (10017, 25563)]