28668315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 51017472

約数和(自身を除く): 22349157

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 169, 195, 215, 263, 507, 559, 645, 789, 845, 1315, 1677, 2535, 2795, 3419, 3945, 7267, 8385, 10257, 11309, 17095, 21801, 33927, 36335, 44447, 51285, 56545, 109005, 133341, 147017, 169635, 222235, 441051, 666705, 735085, 1911221, 2205255, 5733663, 9556105, 28668315]

約数ペア:

[(1, 28668315), (3, 9556105), (5, 5733663), (13, 2205255), (15, 1911221), (39, 735085), (43, 666705), (65, 441051), (129, 222235), (169, 169635), (195, 147017), (215, 133341), (263, 109005), (507, 56545), (559, 51285), (645, 44447), (789, 36335), (845, 33927), (1315, 21801), (1677, 17095), (2535, 11309), (2795, 10257), (3419, 8385), (3945, 7267)]