71389288

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1493}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 138045600

約数和(自身を除く): 66656312

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 556, 1112, 1493, 2986, 5972, 5977, 11944, 11954, 23908, 47816, 64199, 128398, 207527, 256796, 415054, 513592, 830108, 1660216, 8923661, 17847322, 35694644, 71389288]

約数ペア:

[(1, 71389288), (2, 35694644), (4, 17847322), (8, 8923661), (43, 1660216), (86, 830108), (139, 513592), (172, 415054), (278, 256796), (344, 207527), (556, 128398), (1112, 64199), (1493, 47816), (2986, 23908), (5972, 11954), (5977, 11944)]