1280291288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{195883}}^1$

素因数の和:195951

約数の個数: 32

約数和(自身を含む): 2585668800

約数和(自身を除く): 1305377512

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3268, 6536, 195883, 391766, 783532, 1567064, 3721777, 7443554, 8422969, 14887108, 16845938, 29774216, 33691876, 67383752, 160036411, 320072822, 640145644, 1280291288]

約数ペア:

[(1, 1280291288), (2, 640145644), (4, 320072822), (8, 160036411), (19, 67383752), (38, 33691876), (43, 29774216), (76, 16845938), (86, 14887108), (152, 8422969), (172, 7443554), (344, 3721777), (817, 1567064), (1634, 783532), (3268, 391766), (6536, 195883)]