1666960

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 3946176

約数和(自身を除く): 2279216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 311, 335, 536, 622, 670, 1072, 1244, 1340, 1555, 2488, 2680, 3110, 4976, 5360, 6220, 12440, 20837, 24880, 41674, 83348, 104185, 166696, 208370, 333392, 416740, 833480, 1666960]

約数ペア:

[(1, 1666960), (2, 833480), (4, 416740), (5, 333392), (8, 208370), (10, 166696), (16, 104185), (20, 83348), (40, 41674), (67, 24880), (80, 20837), (134, 12440), (268, 6220), (311, 5360), (335, 4976), (536, 3110), (622, 2680), (670, 2488), (1072, 1555), (1244, 1340)]