990981054

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13043}}^1$

素因数の和:13131

約数の個数: 80

約数和(自身を含む): 2575824768

約数和(自身を除く): 1584843714

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 67, 81, 126, 134, 162, 189, 201, 378, 402, 469, 567, 603, 938, 1134, 1206, 1407, 1809, 2814, 3618, 4221, 5427, 8442, 10854, 12663, 13043, 25326, 26086, 37989, 39129, 75978, 78258, 91301, 117387, 182602, 234774, 273903, 352161, 547806, 704322, 821709, 873881, 1056483, 1643418, 1747762, 2112966, 2465127, 2621643, 4930254, 5243286, 6117167, 7395381, 7864929, 12234334, 14790762, 15729858, 18351501, 23594787, 36703002, 47189574, 55054503, 70784361, 110109006, 141568722, 165163509, 330327018, 495490527, 990981054]

約数ペア:

[(1, 990981054), (2, 495490527), (3, 330327018), (6, 165163509), (7, 141568722), (9, 110109006), (14, 70784361), (18, 55054503), (21, 47189574), (27, 36703002), (42, 23594787), (54, 18351501), (63, 15729858), (67, 14790762), (81, 12234334), (126, 7864929), (134, 7395381), (162, 6117167), (189, 5243286), (201, 4930254), (378, 2621643), (402, 2465127), (469, 2112966), (567, 1747762), (603, 1643418), (938, 1056483), (1134, 873881), (1206, 821709), (1407, 704322), (1809, 547806), (2814, 352161), (3618, 273903), (4221, 234774), (5427, 182602), (8442, 117387), (10854, 91301), (12663, 78258), (13043, 75978), (25326, 39129), (26086, 37989)]