1321771560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{42859}}^1$

素因数の和:43130

約数の個数: 64

約数和(自身を含む): 3980836800

約数和(自身を除く): 2659065240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 3084, 3855, 5140, 6168, 7710, 10280, 15420, 30840, 42859, 85718, 128577, 171436, 214295, 257154, 342872, 428590, 514308, 642885, 857180, 1028616, 1285770, 1714360, 2571540, 5143080, 11014763, 22029526, 33044289, 44059052, 55073815, 66088578, 88118104, 110147630, 132177156, 165221445, 220295260, 264354312, 330442890, 440590520, 660885780, 1321771560]

約数ペア:

[(1, 1321771560), (2, 660885780), (3, 440590520), (4, 330442890), (5, 264354312), (6, 220295260), (8, 165221445), (10, 132177156), (12, 110147630), (15, 88118104), (20, 66088578), (24, 55073815), (30, 44059052), (40, 33044289), (60, 22029526), (120, 11014763), (257, 5143080), (514, 2571540), (771, 1714360), (1028, 1285770), (1285, 1028616), (1542, 857180), (2056, 642885), (2570, 514308), (3084, 428590), (3855, 342872), (5140, 257154), (6168, 214295), (7710, 171436), (10280, 128577), (15420, 85718), (30840, 42859)]