256605280

素因数分解:

$2^5\times 5^1\times {\mathrm{337}}^1\times {\mathrm{4759}}^1$

素因数の和:5111

約数の個数: 48

約数和(自身を含む): 608156640

約数和(自身を除く): 351551360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 337, 674, 1348, 1685, 2696, 3370, 4759, 5392, 6740, 9518, 10784, 13480, 19036, 23795, 26960, 38072, 47590, 53920, 76144, 95180, 152288, 190360, 380720, 761440, 1603783, 3207566, 6415132, 8018915, 12830264, 16037830, 25660528, 32075660, 51321056, 64151320, 128302640, 256605280]

約数ペア:

[(1, 256605280), (2, 128302640), (4, 64151320), (5, 51321056), (8, 32075660), (10, 25660528), (16, 16037830), (20, 12830264), (32, 8018915), (40, 6415132), (80, 3207566), (160, 1603783), (337, 761440), (674, 380720), (1348, 190360), (1685, 152288), (2696, 95180), (3370, 76144), (4759, 53920), (5392, 47590), (6740, 38072), (9518, 26960), (10784, 23795), (13480, 19036)]