28946780

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2237}}^1$

素因数の和:2893

約数の個数: 24

約数和(自身を含む): 60909408

約数和(自身を除く): 31962628

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2237, 2588, 3235, 4474, 6470, 8948, 11185, 12940, 22370, 44740, 1447339, 2894678, 5789356, 7236695, 14473390, 28946780]

約数ペア:

[(1, 28946780), (2, 14473390), (4, 7236695), (5, 5789356), (10, 2894678), (20, 1447339), (647, 44740), (1294, 22370), (2237, 12940), (2588, 11185), (3235, 8948), (4474, 6470)]