31811976

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 102435840

約数和(自身を除く): 70623864

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 71, 72, 84, 98, 126, 127, 142, 147, 168, 196, 213, 252, 254, 284, 294, 381, 392, 426, 441, 497, 504, 508, 568, 588, 639, 762, 852, 882, 889, 994, 1016, 1143, 1176, 1278, 1491, 1524, 1704, 1764, 1778, 1988, 2286, 2556, 2667, 2982, 3048, 3479, 3528, 3556, 3976, 4473, 4572, 5112, 5334, 5964, 6223, 6958, 7112, 8001, 8946, 9017, 9144, 10437, 10668, 11928, 12446, 13916, 16002, 17892, 18034, 18669, 20874, 21336, 24892, 27051, 27832, 31311, 32004, 35784, 36068, 37338, 41748, 49784, 54102, 56007, 62622, 63119, 64008, 72136, 74676, 81153, 83496, 108204, 112014, 125244, 126238, 149352, 162306, 189357, 216408, 224028, 250488, 252476, 324612, 378714, 441833, 448056, 504952, 568071, 649224, 757428, 883666, 1136142, 1325499, 1514856, 1767332, 2272284, 2650998, 3534664, 3976497, 4544568, 5301996, 7952994, 10603992, 15905988, 31811976]

約数ペア:

[(1, 31811976), (2, 15905988), (3, 10603992), (4, 7952994), (6, 5301996), (7, 4544568), (8, 3976497), (9, 3534664), (12, 2650998), (14, 2272284), (18, 1767332), (21, 1514856), (24, 1325499), (28, 1136142), (36, 883666), (42, 757428), (49, 649224), (56, 568071), (63, 504952), (71, 448056), (72, 441833), (84, 378714), (98, 324612), (126, 252476), (127, 250488), (142, 224028), (147, 216408), (168, 189357), (196, 162306), (213, 149352), (252, 126238), (254, 125244), (284, 112014), (294, 108204), (381, 83496), (392, 81153), (426, 74676), (441, 72136), (497, 64008), (504, 63119), (508, 62622), (568, 56007), (588, 54102), (639, 49784), (762, 41748), (852, 37338), (882, 36068), (889, 35784), (994, 32004), (1016, 31311), (1143, 27832), (1176, 27051), (1278, 24892), (1491, 21336), (1524, 20874), (1704, 18669), (1764, 18034), (1778, 17892), (1988, 16002), (2286, 13916), (2556, 12446), (2667, 11928), (2982, 10668), (3048, 10437), (3479, 9144), (3528, 9017), (3556, 8946), (3976, 8001), (4473, 7112), (4572, 6958), (5112, 6223), (5334, 5964)]