161808656

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{937}}^1$

素因数の和:1239

約数の個数: 40

約数和(自身を含む): 322416864

約数和(自身を除く): 160608208

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 251, 344, 502, 688, 937, 1004, 1874, 2008, 3748, 4016, 7496, 10793, 14992, 21586, 40291, 43172, 80582, 86344, 161164, 172688, 235187, 322328, 470374, 644656, 940748, 1881496, 3762992, 10113041, 20226082, 40452164, 80904328, 161808656]

約数ペア:

[(1, 161808656), (2, 80904328), (4, 40452164), (8, 20226082), (16, 10113041), (43, 3762992), (86, 1881496), (172, 940748), (251, 644656), (344, 470374), (502, 322328), (688, 235187), (937, 172688), (1004, 161164), (1874, 86344), (2008, 80582), (3748, 43172), (4016, 40291), (7496, 21586), (10793, 14992)]