128273139

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 204422400

約数和(自身を除く): 76149261

約数列:

[1, 3, 9, 23, 27, 59, 69, 81, 177, 207, 243, 389, 531, 621, 1167, 1357, 1593, 1863, 3501, 4071, 4779, 5589, 8947, 10503, 12213, 14337, 22951, 26841, 31509, 36639, 68853, 80523, 94527, 109917, 206559, 241569, 329751, 527873, 619677, 724707, 1583619, 1859031, 2174121, 4750857, 5577093, 14252571, 42757713, 128273139]

約数ペア:

[(1, 128273139), (3, 42757713), (9, 14252571), (23, 5577093), (27, 4750857), (59, 2174121), (69, 1859031), (81, 1583619), (177, 724707), (207, 619677), (243, 527873), (389, 329751), (531, 241569), (621, 206559), (1167, 109917), (1357, 94527), (1593, 80523), (1863, 68853), (3501, 36639), (4071, 31509), (4779, 26841), (5589, 22951), (8947, 14337), (10503, 12213)]