1291889090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1\times {\mathrm{5657}}^1$

素因数の和:6262

約数の個数: 32

約数和(自身を含む): 2386815984

約数和(自身を除く): 1094926894

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 557, 1114, 2785, 5570, 5657, 11314, 22837, 28285, 45674, 56570, 114185, 228370, 231937, 463874, 1159685, 2319370, 3150949, 6301898, 15754745, 31509490, 129188909, 258377818, 645944545, 1291889090]

約数ペア:

[(1, 1291889090), (2, 645944545), (5, 258377818), (10, 129188909), (41, 31509490), (82, 15754745), (205, 6301898), (410, 3150949), (557, 2319370), (1114, 1159685), (2785, 463874), (5570, 231937), (5657, 228370), (11314, 114185), (22837, 56570), (28285, 45674)]