126568280

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{4787}}^1$

素因数の和:5459

約数の個数: 32

約数和(自身を含む): 285269040

約数和(自身を除く): 158700760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 4787, 5288, 6610, 9574, 13220, 19148, 23935, 26440, 38296, 47870, 95740, 191480, 3164207, 6328414, 12656828, 15821035, 25313656, 31642070, 63284140, 126568280]

約数ペア:

[(1, 126568280), (2, 63284140), (4, 31642070), (5, 25313656), (8, 15821035), (10, 12656828), (20, 6328414), (40, 3164207), (661, 191480), (1322, 95740), (2644, 47870), (3305, 38296), (4787, 26440), (5288, 23935), (6610, 19148), (9574, 13220)]