129644656

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{188437}}^1$

素因数の和:188488

約数の個数: 20

約数和(自身を含む): 257029432

約数和(自身を除く): 127384776

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 188437, 376874, 753748, 1507496, 3014992, 8102791, 16205582, 32411164, 64822328, 129644656]

約数ペア:

[(1, 129644656), (2, 64822328), (4, 32411164), (8, 16205582), (16, 8102791), (43, 3014992), (86, 1507496), (172, 753748), (344, 376874), (688, 188437)]