81046784

素因数分解:

$2^8\times 7^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 206035200

約数和(自身を除く): 124988416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 71, 91, 98, 104, 112, 128, 142, 182, 196, 208, 224, 256, 284, 343, 364, 392, 416, 448, 497, 568, 637, 686, 728, 784, 832, 896, 923, 994, 1136, 1274, 1372, 1456, 1568, 1664, 1792, 1846, 1988, 2272, 2548, 2744, 2912, 3136, 3328, 3479, 3692, 3976, 4459, 4544, 5096, 5488, 5824, 6272, 6461, 6958, 7384, 7952, 8918, 9088, 10192, 10976, 11648, 12544, 12922, 13916, 14768, 15904, 17836, 18176, 20384, 21952, 23296, 24353, 25844, 27832, 29536, 31808, 35672, 40768, 43904, 45227, 48706, 51688, 55664, 59072, 63616, 71344, 81536, 87808, 90454, 97412, 103376, 111328, 118144, 127232, 142688, 163072, 180908, 194824, 206752, 222656, 236288, 285376, 316589, 361816, 389648, 413504, 445312, 570752, 633178, 723632, 779296, 827008, 890624, 1141504, 1266356, 1447264, 1558592, 1654016, 2532712, 2894528, 3117184, 5065424, 5789056, 6234368, 10130848, 11578112, 20261696, 40523392, 81046784]

約数ペア:

[(1, 81046784), (2, 40523392), (4, 20261696), (7, 11578112), (8, 10130848), (13, 6234368), (14, 5789056), (16, 5065424), (26, 3117184), (28, 2894528), (32, 2532712), (49, 1654016), (52, 1558592), (56, 1447264), (64, 1266356), (71, 1141504), (91, 890624), (98, 827008), (104, 779296), (112, 723632), (128, 633178), (142, 570752), (182, 445312), (196, 413504), (208, 389648), (224, 361816), (256, 316589), (284, 285376), (343, 236288), (364, 222656), (392, 206752), (416, 194824), (448, 180908), (497, 163072), (568, 142688), (637, 127232), (686, 118144), (728, 111328), (784, 103376), (832, 97412), (896, 90454), (923, 87808), (994, 81536), (1136, 71344), (1274, 63616), (1372, 59072), (1456, 55664), (1568, 51688), (1664, 48706), (1792, 45227), (1846, 43904), (1988, 40768), (2272, 35672), (2548, 31808), (2744, 29536), (2912, 27832), (3136, 25844), (3328, 24353), (3479, 23296), (3692, 21952), (3976, 20384), (4459, 18176), (4544, 17836), (5096, 15904), (5488, 14768), (5824, 13916), (6272, 12922), (6461, 12544), (6958, 11648), (7384, 10976), (7952, 10192), (8918, 9088)]