81225018

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1747}}^1$

素因数の和:1809

約数の個数: 80

約数和(自身を含む): 213200064

約数和(自身を除く): 131975046

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 54, 63, 81, 82, 123, 126, 162, 189, 246, 287, 369, 378, 567, 574, 738, 861, 1107, 1134, 1722, 1747, 2214, 2583, 3321, 3494, 5166, 5241, 6642, 7749, 10482, 12229, 15498, 15723, 23247, 24458, 31446, 36687, 46494, 47169, 71627, 73374, 94338, 110061, 141507, 143254, 214881, 220122, 283014, 330183, 429762, 501389, 644643, 660366, 990549, 1002778, 1289286, 1504167, 1933929, 1981098, 3008334, 3867858, 4512501, 5801787, 9025002, 11603574, 13537503, 27075006, 40612509, 81225018]

約数ペア:

[(1, 81225018), (2, 40612509), (3, 27075006), (6, 13537503), (7, 11603574), (9, 9025002), (14, 5801787), (18, 4512501), (21, 3867858), (27, 3008334), (41, 1981098), (42, 1933929), (54, 1504167), (63, 1289286), (81, 1002778), (82, 990549), (123, 660366), (126, 644643), (162, 501389), (189, 429762), (246, 330183), (287, 283014), (369, 220122), (378, 214881), (567, 143254), (574, 141507), (738, 110061), (861, 94338), (1107, 73374), (1134, 71627), (1722, 47169), (1747, 46494), (2214, 36687), (2583, 31446), (3321, 24458), (3494, 23247), (5166, 15723), (5241, 15498), (6642, 12229), (7749, 10482)]