81434178

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:876

約数の個数: 72

約数和(自身を含む): 207148032

約数和(自身を除く): 125713854

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 127, 147, 254, 294, 381, 441, 727, 762, 882, 889, 1143, 1454, 1778, 2181, 2286, 2667, 4362, 5089, 5334, 6223, 6543, 8001, 10178, 12446, 13086, 15267, 16002, 18669, 30534, 35623, 37338, 45801, 56007, 71246, 91602, 92329, 106869, 112014, 184658, 213738, 276987, 320607, 553974, 641214, 646303, 830961, 1292606, 1661922, 1938909, 3877818, 4524121, 5816727, 9048242, 11633454, 13572363, 27144726, 40717089, 81434178]

約数ペア:

[(1, 81434178), (2, 40717089), (3, 27144726), (6, 13572363), (7, 11633454), (9, 9048242), (14, 5816727), (18, 4524121), (21, 3877818), (42, 1938909), (49, 1661922), (63, 1292606), (98, 830961), (126, 646303), (127, 641214), (147, 553974), (254, 320607), (294, 276987), (381, 213738), (441, 184658), (727, 112014), (762, 106869), (882, 92329), (889, 91602), (1143, 71246), (1454, 56007), (1778, 45801), (2181, 37338), (2286, 35623), (2667, 30534), (4362, 18669), (5089, 16002), (5334, 15267), (6223, 13086), (6543, 12446), (8001, 10178)]