20161609965

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229409}}^1$

素因数の和:229464

約数の個数: 80

約数和(自身を含む): 42637224960

約数和(自身を除く): 22475614995

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 81, 93, 105, 135, 155, 189, 217, 279, 315, 405, 465, 567, 651, 837, 945, 1085, 1395, 1953, 2511, 2835, 3255, 4185, 5859, 9765, 12555, 17577, 29295, 87885, 229409, 688227, 1147045, 1605863, 2064681, 3441135, 4817589, 6194043, 7111679, 8029315, 10323405, 14452767, 18582129, 21335037, 24087945, 30970215, 35558395, 43358301, 49781753, 64005111, 72263835, 92910645, 106675185, 130074903, 149345259, 192015333, 216791505, 248908765, 320025555, 448035777, 576045999, 650374515, 746726295, 960076665, 1344107331, 2240178885, 2880229995, 4032321993, 6720536655, 20161609965]

約数ペア:

[(1, 20161609965), (3, 6720536655), (5, 4032321993), (7, 2880229995), (9, 2240178885), (15, 1344107331), (21, 960076665), (27, 746726295), (31, 650374515), (35, 576045999), (45, 448035777), (63, 320025555), (81, 248908765), (93, 216791505), (105, 192015333), (135, 149345259), (155, 130074903), (189, 106675185), (217, 92910645), (279, 72263835), (315, 64005111), (405, 49781753), (465, 43358301), (567, 35558395), (651, 30970215), (837, 24087945), (945, 21335037), (1085, 18582129), (1395, 14452767), (1953, 10323405), (2511, 8029315), (2835, 7111679), (3255, 6194043), (4185, 4817589), (5859, 3441135), (9765, 2064681), (12555, 1605863), (17577, 1147045), (29295, 688227), (87885, 229409)]