278340740

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{72109}}^1$

素因数の和:72311

約数の個数: 24

約数和(自身を含む): 587552280

約数和(自身を除く): 309211540

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 72109, 144218, 288436, 360545, 721090, 1442180, 13917037, 27834074, 55668148, 69585185, 139170370, 278340740]

約数ペア:

[(1, 278340740), (2, 139170370), (4, 69585185), (5, 55668148), (10, 27834074), (20, 13917037), (193, 1442180), (386, 721090), (772, 360545), (965, 288436), (1930, 144218), (3860, 72109)]