256920880

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{47933}}^1$

素因数の和:48013

約数の個数: 40

約数和(自身を含む): 606269232

約数和(自身を除く): 349348352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 47933, 95866, 191732, 239665, 383464, 479330, 766928, 958660, 1917320, 3211511, 3834640, 6423022, 12846044, 16057555, 25692088, 32115110, 51384176, 64230220, 128460440, 256920880]

約数ペア:

[(1, 256920880), (2, 128460440), (4, 64230220), (5, 51384176), (8, 32115110), (10, 25692088), (16, 16057555), (20, 12846044), (40, 6423022), (67, 3834640), (80, 3211511), (134, 1917320), (268, 958660), (335, 766928), (536, 479330), (670, 383464), (1072, 239665), (1340, 191732), (2680, 95866), (5360, 47933)]