128927072

素因数分解:

$2^5\times {\mathrm{43}}^2\times {\mathrm{2179}}^1$

素因数の和:2275

約数の個数: 36

約数和(自身を含む): 259984620

約数和(自身を除く): 131057548

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 1849, 2179, 3698, 4358, 7396, 8716, 14792, 17432, 29584, 34864, 59168, 69728, 93697, 187394, 374788, 749576, 1499152, 2998304, 4028971, 8057942, 16115884, 32231768, 64463536, 128927072]

約数ペア:

[(1, 128927072), (2, 64463536), (4, 32231768), (8, 16115884), (16, 8057942), (32, 4028971), (43, 2998304), (86, 1499152), (172, 749576), (344, 374788), (688, 187394), (1376, 93697), (1849, 69728), (2179, 59168), (3698, 34864), (4358, 29584), (7396, 17432), (8716, 14792)]