28099386

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 80

約数和(自身を含む): 73180800

約数和(自身を除く): 45081414

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 349, 378, 426, 497, 567, 639, 698, 994, 1047, 1134, 1278, 1491, 1917, 2094, 2443, 2982, 3141, 3834, 4473, 4886, 5751, 6282, 7329, 8946, 9423, 11502, 13419, 14658, 18846, 21987, 24779, 26838, 28269, 40257, 43974, 49558, 56538, 65961, 74337, 80514, 131922, 148674, 173453, 197883, 223011, 346906, 395766, 446022, 520359, 669033, 1040718, 1338066, 1561077, 2007099, 3122154, 4014198, 4683231, 9366462, 14049693, 28099386]

約数ペア:

[(1, 28099386), (2, 14049693), (3, 9366462), (6, 4683231), (7, 4014198), (9, 3122154), (14, 2007099), (18, 1561077), (21, 1338066), (27, 1040718), (42, 669033), (54, 520359), (63, 446022), (71, 395766), (81, 346906), (126, 223011), (142, 197883), (162, 173453), (189, 148674), (213, 131922), (349, 80514), (378, 74337), (426, 65961), (497, 56538), (567, 49558), (639, 43974), (698, 40257), (994, 28269), (1047, 26838), (1134, 24779), (1278, 21987), (1491, 18846), (1917, 14658), (2094, 13419), (2443, 11502), (2982, 9423), (3141, 8946), (3834, 7329), (4473, 6282), (4886, 5751)]