128025821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 165473280

約数和(自身を除く): 37447459

約数列:

[1, 7, 11, 41, 77, 107, 287, 379, 451, 749, 1177, 2653, 3157, 4169, 4387, 8239, 15539, 29183, 30709, 40553, 48257, 108773, 170929, 283871, 337799, 446083, 1196503, 1662673, 3122581, 11638711, 18289403, 128025821]

約数ペア:

[(1, 128025821), (7, 18289403), (11, 11638711), (41, 3122581), (77, 1662673), (107, 1196503), (287, 446083), (379, 337799), (451, 283871), (749, 170929), (1177, 108773), (2653, 48257), (3157, 40553), (4169, 30709), (4387, 29183), (8239, 15539)]