81444272

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 120

約数和(自身を含む): 202455792

約数和(自身を除く): 121011520

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 61, 91, 98, 104, 112, 122, 131, 182, 196, 208, 244, 262, 364, 392, 427, 488, 524, 637, 728, 784, 793, 854, 917, 976, 1048, 1274, 1456, 1586, 1703, 1708, 1834, 2096, 2548, 2989, 3172, 3406, 3416, 3668, 5096, 5551, 5978, 6344, 6419, 6812, 6832, 7336, 7991, 10192, 11102, 11921, 11956, 12688, 12838, 13624, 14672, 15982, 22204, 23842, 23912, 25676, 27248, 31964, 38857, 44408, 47684, 47824, 51352, 55937, 63928, 77714, 83447, 88816, 95368, 102704, 103883, 111874, 127856, 155428, 166894, 190736, 207766, 223748, 310856, 333788, 391559, 415532, 447496, 621712, 667576, 727181, 783118, 831064, 894992, 1335152, 1454362, 1566236, 1662128, 2908724, 3132472, 5090267, 5817448, 6264944, 10180534, 11634896, 20361068, 40722136, 81444272]

約数ペア:

[(1, 81444272), (2, 40722136), (4, 20361068), (7, 11634896), (8, 10180534), (13, 6264944), (14, 5817448), (16, 5090267), (26, 3132472), (28, 2908724), (49, 1662128), (52, 1566236), (56, 1454362), (61, 1335152), (91, 894992), (98, 831064), (104, 783118), (112, 727181), (122, 667576), (131, 621712), (182, 447496), (196, 415532), (208, 391559), (244, 333788), (262, 310856), (364, 223748), (392, 207766), (427, 190736), (488, 166894), (524, 155428), (637, 127856), (728, 111874), (784, 103883), (793, 102704), (854, 95368), (917, 88816), (976, 83447), (1048, 77714), (1274, 63928), (1456, 55937), (1586, 51352), (1703, 47824), (1708, 47684), (1834, 44408), (2096, 38857), (2548, 31964), (2989, 27248), (3172, 25676), (3406, 23912), (3416, 23842), (3668, 22204), (5096, 15982), (5551, 14672), (5978, 13624), (6344, 12838), (6419, 12688), (6812, 11956), (6832, 11921), (7336, 11102), (7991, 10192)]