690878721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{1087}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 1018716160

約数和(自身を除く): 327837439

約数列:

[1, 3, 13, 39, 43, 129, 379, 559, 1087, 1137, 1677, 3261, 4927, 14131, 14781, 16297, 42393, 46741, 48891, 140223, 211861, 411973, 607633, 635583, 1235919, 1822899, 5355649, 16066947, 17714839, 53144517, 230292907, 690878721]

約数ペア:

[(1, 690878721), (3, 230292907), (13, 53144517), (39, 17714839), (43, 16066947), (129, 5355649), (379, 1822899), (559, 1235919), (1087, 635583), (1137, 607633), (1677, 411973), (3261, 211861), (4927, 140223), (14131, 48891), (14781, 46741), (16297, 42393)]