280528029

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{48779}}^1$

素因数の和:48862

約数の個数: 20

約数和(自身を含む): 424971360

約数和(自身を除く): 144443331

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 48779, 146337, 439011, 1317033, 3463309, 3951099, 10389927, 31169781, 93509343, 280528029]

約数ペア:

[(1, 280528029), (3, 93509343), (9, 31169781), (27, 10389927), (71, 3951099), (81, 3463309), (213, 1317033), (639, 439011), (1917, 146337), (5751, 48779)]