636685960

素因数分解:

$2^3\times 5^1\times {\mathrm{2903}}^1\times {\mathrm{5483}}^1$

素因数の和:8397

約数の個数: 32

約数和(自身を含む): 1433298240

約数和(自身を除く): 796612280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2903, 5483, 5806, 10966, 11612, 14515, 21932, 23224, 27415, 29030, 43864, 54830, 58060, 109660, 116120, 219320, 15917149, 31834298, 63668596, 79585745, 127337192, 159171490, 318342980, 636685960]

約数ペア:

[(1, 636685960), (2, 318342980), (4, 159171490), (5, 127337192), (8, 79585745), (10, 63668596), (20, 31834298), (40, 15917149), (2903, 219320), (5483, 116120), (5806, 109660), (10966, 58060), (11612, 54830), (14515, 43864), (21932, 29030), (23224, 27415)]