128519428

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{8161}}^1$

素因数の和:8323

約数の個数: 24

約数和(自身を含む): 234020864

約数和(自身を除く): 105501436

約数列:

[1, 2, 4, 31, 62, 124, 127, 254, 508, 3937, 7874, 8161, 15748, 16322, 32644, 252991, 505982, 1011964, 1036447, 2072894, 4145788, 32129857, 64259714, 128519428]

約数ペア:

[(1, 128519428), (2, 64259714), (4, 32129857), (31, 4145788), (62, 2072894), (124, 1036447), (127, 1011964), (254, 505982), (508, 252991), (3937, 32644), (7874, 16322), (8161, 15748)]