81176560

素因数分解:

$2^4\times 5^1\times {\mathrm{337}}^1\times {\mathrm{3011}}^1$

素因数の和:3361

約数の個数: 40

約数和(自身を含む): 189358416

約数和(自身を除く): 108181856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 337, 674, 1348, 1685, 2696, 3011, 3370, 5392, 6022, 6740, 12044, 13480, 15055, 24088, 26960, 30110, 48176, 60220, 120440, 240880, 1014707, 2029414, 4058828, 5073535, 8117656, 10147070, 16235312, 20294140, 40588280, 81176560]

約数ペア:

[(1, 81176560), (2, 40588280), (4, 20294140), (5, 16235312), (8, 10147070), (10, 8117656), (16, 5073535), (20, 4058828), (40, 2029414), (80, 1014707), (337, 240880), (674, 120440), (1348, 60220), (1685, 48176), (2696, 30110), (3011, 26960), (3370, 24088), (5392, 15055), (6022, 13480), (6740, 12044)]