1389115

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 32

約数和(自身を含む): 2128896

約数和(自身を除く): 739781

約数列:

[1, 5, 7, 13, 35, 43, 65, 71, 91, 215, 301, 355, 455, 497, 559, 923, 1505, 2485, 2795, 3053, 3913, 4615, 6461, 15265, 19565, 21371, 32305, 39689, 106855, 198445, 277823, 1389115]

約数ペア:

[(1, 1389115), (5, 277823), (7, 198445), (13, 106855), (35, 39689), (43, 32305), (65, 21371), (71, 19565), (91, 15265), (215, 6461), (301, 4615), (355, 3913), (455, 3053), (497, 2795), (559, 2485), (923, 1505)]