81156978

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1213}}^1$

素因数の和:1293

約数の個数: 80

約数和(自身を含む): 211527360

約数和(自身を除く): 130370382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 59, 63, 81, 118, 126, 162, 177, 189, 354, 378, 413, 531, 567, 826, 1062, 1134, 1213, 1239, 1593, 2426, 2478, 3186, 3639, 3717, 4779, 7278, 7434, 8491, 9558, 10917, 11151, 16982, 21834, 22302, 25473, 32751, 33453, 50946, 65502, 66906, 71567, 76419, 98253, 143134, 152838, 196506, 214701, 229257, 429402, 458514, 500969, 644103, 687771, 1001938, 1288206, 1375542, 1502907, 1932309, 3005814, 3864618, 4508721, 5796927, 9017442, 11593854, 13526163, 27052326, 40578489, 81156978]

約数ペア:

[(1, 81156978), (2, 40578489), (3, 27052326), (6, 13526163), (7, 11593854), (9, 9017442), (14, 5796927), (18, 4508721), (21, 3864618), (27, 3005814), (42, 1932309), (54, 1502907), (59, 1375542), (63, 1288206), (81, 1001938), (118, 687771), (126, 644103), (162, 500969), (177, 458514), (189, 429402), (354, 229257), (378, 214701), (413, 196506), (531, 152838), (567, 143134), (826, 98253), (1062, 76419), (1134, 71567), (1213, 66906), (1239, 65502), (1593, 50946), (2426, 33453), (2478, 32751), (3186, 25473), (3639, 22302), (3717, 21834), (4779, 16982), (7278, 11151), (7434, 10917), (8491, 9558)]