257425905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{2801}}^1$

素因数の和:3377

約数の個数: 32

約数和(自身を含む): 450292608

約数和(自身を除く): 192866703

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 557, 1671, 2785, 2801, 6127, 8355, 8403, 14005, 18381, 30635, 30811, 42015, 91905, 92433, 154055, 462165, 1560157, 4680471, 7800785, 17161727, 23402355, 51485181, 85808635, 257425905]

約数ペア:

[(1, 257425905), (3, 85808635), (5, 51485181), (11, 23402355), (15, 17161727), (33, 7800785), (55, 4680471), (165, 1560157), (557, 462165), (1671, 154055), (2785, 92433), (2801, 91905), (6127, 42015), (8355, 30811), (8403, 30635), (14005, 18381)]