128389455

素因数分解:

$3^4\times 5^1\times {\mathrm{317011}}^1$

素因数の和:317028

約数の個数: 20

約数和(自身を含む): 230150712

約数和(自身を除く): 101761257

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 317011, 951033, 1585055, 2853099, 4755165, 8559297, 14265495, 25677891, 42796485, 128389455]

約数ペア:

[(1, 128389455), (3, 42796485), (5, 25677891), (9, 14265495), (15, 8559297), (27, 4755165), (45, 2853099), (81, 1585055), (135, 951033), (405, 317011)]