256497856

素因数分解:

$2^6\times {\mathrm{1987}}^1\times {\mathrm{2017}}^1$

素因数の和:4016

約数の個数: 28

約数和(自身を含む): 509496568

約数和(自身を除く): 252998712

約数列:

[1, 2, 4, 8, 16, 32, 64, 1987, 2017, 3974, 4034, 7948, 8068, 15896, 16136, 31792, 32272, 63584, 64544, 127168, 129088, 4007779, 8015558, 16031116, 32062232, 64124464, 128248928, 256497856]

約数ペア:

[(1, 256497856), (2, 128248928), (4, 64124464), (8, 32062232), (16, 16031116), (32, 8015558), (64, 4007779), (1987, 129088), (2017, 127168), (3974, 64544), (4034, 63584), (7948, 32272), (8068, 31792), (15896, 16136)]