81185454

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1109}}^1$

素因数の和:1214

約数の個数: 72

約数和(自身を含む): 207272520

約数和(自身を除く): 126087066

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 83, 98, 126, 147, 166, 249, 294, 441, 498, 581, 747, 882, 1109, 1162, 1494, 1743, 2218, 3327, 3486, 4067, 5229, 6654, 7763, 8134, 9981, 10458, 12201, 15526, 19962, 23289, 24402, 36603, 46578, 54341, 69867, 73206, 92047, 108682, 139734, 163023, 184094, 276141, 326046, 489069, 552282, 644329, 828423, 978138, 1288658, 1656846, 1932987, 3865974, 4510303, 5798961, 9020606, 11597922, 13530909, 27061818, 40592727, 81185454]

約数ペア:

[(1, 81185454), (2, 40592727), (3, 27061818), (6, 13530909), (7, 11597922), (9, 9020606), (14, 5798961), (18, 4510303), (21, 3865974), (42, 1932987), (49, 1656846), (63, 1288658), (83, 978138), (98, 828423), (126, 644329), (147, 552282), (166, 489069), (249, 326046), (294, 276141), (441, 184094), (498, 163023), (581, 139734), (747, 108682), (882, 92047), (1109, 73206), (1162, 69867), (1494, 54341), (1743, 46578), (2218, 36603), (3327, 24402), (3486, 23289), (4067, 19962), (5229, 15526), (6654, 12201), (7763, 10458), (8134, 9981)]