81906220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16187}}^1$

素因数の和:16230

約数の個数: 48

約数和(自身を含む): 195810048

約数和(自身を除く): 113903828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 16187, 32374, 64748, 80935, 161870, 178057, 323740, 356114, 372301, 712228, 744602, 890285, 1489204, 1780570, 1861505, 3561140, 3723010, 4095311, 7446020, 8190622, 16381244, 20476555, 40953110, 81906220]

約数ペア:

[(1, 81906220), (2, 40953110), (4, 20476555), (5, 16381244), (10, 8190622), (11, 7446020), (20, 4095311), (22, 3723010), (23, 3561140), (44, 1861505), (46, 1780570), (55, 1489204), (92, 890285), (110, 744602), (115, 712228), (220, 372301), (230, 356114), (253, 323740), (460, 178057), (506, 161870), (1012, 80935), (1265, 64748), (2530, 32374), (5060, 16187)]