128465617

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 161021952

約数和(自身を除く): 32556335

約数列:

[1, 7, 17, 47, 103, 119, 223, 329, 721, 799, 1561, 1751, 3791, 4841, 5593, 10481, 12257, 22969, 26537, 33887, 73367, 82297, 160783, 178177, 390473, 576079, 1079543, 1247239, 2733311, 7556801, 18352231, 128465617]

約数ペア:

[(1, 128465617), (7, 18352231), (17, 7556801), (47, 2733311), (103, 1247239), (119, 1079543), (223, 576079), (329, 390473), (721, 178177), (799, 160783), (1561, 82297), (1751, 73367), (3791, 33887), (4841, 26537), (5593, 22969), (10481, 12257)]