278360469

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{180871}}^1$

素因数の和:180902

約数の個数: 20

約数和(自身を含む): 437710240

約数和(自身を除く): 159349771

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 180871, 542613, 1627839, 3436549, 4883517, 10309647, 14650551, 30928941, 92786823, 278360469]

約数ペア:

[(1, 278360469), (3, 92786823), (9, 30928941), (19, 14650551), (27, 10309647), (57, 4883517), (81, 3436549), (171, 1627839), (513, 542613), (1539, 180871)]