2205255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 3902976

約数和(自身を除く): 1697721

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 263, 559, 645, 789, 1315, 1677, 2795, 3419, 3945, 8385, 10257, 11309, 17095, 33927, 51285, 56545, 147017, 169635, 441051, 735085, 2205255]

約数ペア:

[(1, 2205255), (3, 735085), (5, 441051), (13, 169635), (15, 147017), (39, 56545), (43, 51285), (65, 33927), (129, 17095), (195, 11309), (215, 10257), (263, 8385), (559, 3945), (645, 3419), (789, 2795), (1315, 1677)]