1280711978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{1453}}^1$

素因数の和:1671

約数の個数: 64

約数和(自身を含む): 2462261760

約数和(自身を除く): 1181549782

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 167, 182, 203, 334, 377, 406, 754, 1169, 1453, 2171, 2338, 2639, 2906, 4342, 4843, 5278, 9686, 10171, 15197, 18889, 20342, 30394, 33901, 37778, 42137, 62959, 67802, 84274, 125918, 132223, 242651, 264446, 294959, 440713, 485302, 547781, 589918, 881426, 1095562, 1698557, 3154463, 3397114, 3834467, 6308926, 7036879, 7668934, 14073758, 22081241, 44162482, 49258153, 91479427, 98516306, 182958854, 640355989, 1280711978]

約数ペア:

[(1, 1280711978), (2, 640355989), (7, 182958854), (13, 98516306), (14, 91479427), (26, 49258153), (29, 44162482), (58, 22081241), (91, 14073758), (167, 7668934), (182, 7036879), (203, 6308926), (334, 3834467), (377, 3397114), (406, 3154463), (754, 1698557), (1169, 1095562), (1453, 881426), (2171, 589918), (2338, 547781), (2639, 485302), (2906, 440713), (4342, 294959), (4843, 264446), (5278, 242651), (9686, 132223), (10171, 125918), (15197, 84274), (18889, 67802), (20342, 62959), (30394, 42137), (33901, 37778)]