256767804587

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1\times {\mathrm{9413}}^1$

素因数の和:9899

約数の個数: 32

約数和(自身を含む): 299189873664

約数和(自身を除く): 42422069077

約数列:

[1, 7, 131, 151, 197, 917, 1057, 1379, 9413, 19781, 25807, 29747, 65891, 138467, 180649, 208229, 1233103, 1421363, 1854361, 3896857, 8631721, 9949541, 12980527, 27277999, 186198553, 242921291, 280008511, 1303389871, 1700449037, 1960059577, 36681114941, 256767804587]

約数ペア:

[(1, 256767804587), (7, 36681114941), (131, 1960059577), (151, 1700449037), (197, 1303389871), (917, 280008511), (1057, 242921291), (1379, 186198553), (9413, 27277999), (19781, 12980527), (25807, 9949541), (29747, 8631721), (65891, 3896857), (138467, 1854361), (180649, 1421363), (208229, 1233103)]