81354112

素因数分解:

$2^7\times 7^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 201960000

約数和(自身を除く): 120605888

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 109, 112, 119, 128, 136, 196, 218, 224, 238, 272, 343, 392, 436, 448, 476, 544, 686, 763, 784, 833, 872, 896, 952, 1088, 1372, 1526, 1568, 1666, 1744, 1853, 1904, 2176, 2744, 3052, 3136, 3332, 3488, 3706, 3808, 5341, 5488, 5831, 6104, 6272, 6664, 6976, 7412, 7616, 10682, 10976, 11662, 12208, 12971, 13328, 13952, 14824, 15232, 21364, 21952, 23324, 24416, 25942, 26656, 29648, 37387, 42728, 43904, 46648, 48832, 51884, 53312, 59296, 74774, 85456, 90797, 93296, 97664, 103768, 106624, 118592, 149548, 170912, 181594, 186592, 207536, 237184, 299096, 341824, 363188, 373184, 415072, 598192, 635579, 683648, 726376, 746368, 830144, 1196384, 1271158, 1452752, 1660288, 2392768, 2542316, 2905504, 4785536, 5084632, 5811008, 10169264, 11622016, 20338528, 40677056, 81354112]

約数ペア:

[(1, 81354112), (2, 40677056), (4, 20338528), (7, 11622016), (8, 10169264), (14, 5811008), (16, 5084632), (17, 4785536), (28, 2905504), (32, 2542316), (34, 2392768), (49, 1660288), (56, 1452752), (64, 1271158), (68, 1196384), (98, 830144), (109, 746368), (112, 726376), (119, 683648), (128, 635579), (136, 598192), (196, 415072), (218, 373184), (224, 363188), (238, 341824), (272, 299096), (343, 237184), (392, 207536), (436, 186592), (448, 181594), (476, 170912), (544, 149548), (686, 118592), (763, 106624), (784, 103768), (833, 97664), (872, 93296), (896, 90797), (952, 85456), (1088, 74774), (1372, 59296), (1526, 53312), (1568, 51884), (1666, 48832), (1744, 46648), (1853, 43904), (1904, 42728), (2176, 37387), (2744, 29648), (3052, 26656), (3136, 25942), (3332, 24416), (3488, 23324), (3706, 21952), (3808, 21364), (5341, 15232), (5488, 14824), (5831, 13952), (6104, 13328), (6272, 12971), (6664, 12208), (6976, 11662), (7412, 10976), (7616, 10682)]