81349968

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1229}}^1$

素因数の和:1444

約数の個数: 80

約数和(自身を含む): 241591680

約数和(自身を除く): 160241712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 197, 336, 394, 591, 788, 1182, 1229, 1379, 1576, 2364, 2458, 2758, 3152, 3687, 4137, 4728, 4916, 5516, 7374, 8274, 8603, 9456, 9832, 11032, 14748, 16548, 17206, 19664, 22064, 25809, 29496, 33096, 34412, 51618, 58992, 66192, 68824, 103236, 137648, 206472, 242113, 412944, 484226, 726339, 968452, 1452678, 1694791, 1936904, 2905356, 3389582, 3873808, 5084373, 5810712, 6779164, 10168746, 11621424, 13558328, 20337492, 27116656, 40674984, 81349968]

約数ペア:

[(1, 81349968), (2, 40674984), (3, 27116656), (4, 20337492), (6, 13558328), (7, 11621424), (8, 10168746), (12, 6779164), (14, 5810712), (16, 5084373), (21, 3873808), (24, 3389582), (28, 2905356), (42, 1936904), (48, 1694791), (56, 1452678), (84, 968452), (112, 726339), (168, 484226), (197, 412944), (336, 242113), (394, 206472), (591, 137648), (788, 103236), (1182, 68824), (1229, 66192), (1379, 58992), (1576, 51618), (2364, 34412), (2458, 33096), (2758, 29496), (3152, 25809), (3687, 22064), (4137, 19664), (4728, 17206), (4916, 16548), (5516, 14748), (7374, 11032), (8274, 9832), (8603, 9456)]