81617118080

素因数分解:

$2^7\times 5^1\times {\mathrm{14431}}^1\times {\mathrm{8837}}^1$

素因数の和:23287

約数の個数: 64

約数和(自身を含む): 195151524480

約数和(自身を除く): 113534406400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 8837, 14431, 17674, 28862, 35348, 44185, 57724, 70696, 72155, 88370, 115448, 141392, 144310, 176740, 230896, 282784, 288620, 353480, 461792, 565568, 577240, 706960, 923584, 1131136, 1154480, 1413920, 1847168, 2308960, 2827840, 4617920, 5655680, 9235840, 127526747, 255053494, 510106988, 637633735, 1020213976, 1275267470, 2040427952, 2550534940, 4080855904, 5101069880, 8161711808, 10202139760, 16323423616, 20404279520, 40808559040, 81617118080]

約数ペア:

[(1, 81617118080), (2, 40808559040), (4, 20404279520), (5, 16323423616), (8, 10202139760), (10, 8161711808), (16, 5101069880), (20, 4080855904), (32, 2550534940), (40, 2040427952), (64, 1275267470), (80, 1020213976), (128, 637633735), (160, 510106988), (320, 255053494), (640, 127526747), (8837, 9235840), (14431, 5655680), (17674, 4617920), (28862, 2827840), (35348, 2308960), (44185, 1847168), (57724, 1413920), (70696, 1154480), (72155, 1131136), (88370, 923584), (115448, 706960), (141392, 577240), (144310, 565568), (176740, 461792), (230896, 353480), (282784, 288620)]