257245612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{38953}}^1$

素因数の和:39097

約数の個数: 24

約数和(自身を含む): 488638976

約数和(自身を除く): 231393364

約数列:

[1, 2, 4, 13, 26, 52, 127, 254, 508, 1651, 3302, 6604, 38953, 77906, 155812, 506389, 1012778, 2025556, 4947031, 9894062, 19788124, 64311403, 128622806, 257245612]

約数ペア:

[(1, 257245612), (2, 128622806), (4, 64311403), (13, 19788124), (26, 9894062), (52, 4947031), (127, 2025556), (254, 1012778), (508, 506389), (1651, 155812), (3302, 77906), (6604, 38953)]