81340784

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^2\times {\mathrm{359}}^1$

素因数の和:415

約数の個数: 90

約数和(自身を含む): 195288840

約数和(自身を除く): 113948056

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 289, 359, 392, 476, 578, 718, 784, 833, 952, 1156, 1436, 1666, 1904, 2023, 2312, 2513, 2872, 3332, 4046, 4624, 5026, 5744, 6103, 6664, 8092, 10052, 12206, 13328, 14161, 16184, 17591, 20104, 24412, 28322, 32368, 35182, 40208, 42721, 48824, 56644, 70364, 85442, 97648, 103751, 113288, 140728, 170884, 207502, 226576, 281456, 299047, 341768, 415004, 598094, 683536, 726257, 830008, 1196188, 1452514, 1660016, 2392376, 2905028, 4784752, 5083799, 5810056, 10167598, 11620112, 20335196, 40670392, 81340784]

約数ペア:

[(1, 81340784), (2, 40670392), (4, 20335196), (7, 11620112), (8, 10167598), (14, 5810056), (16, 5083799), (17, 4784752), (28, 2905028), (34, 2392376), (49, 1660016), (56, 1452514), (68, 1196188), (98, 830008), (112, 726257), (119, 683536), (136, 598094), (196, 415004), (238, 341768), (272, 299047), (289, 281456), (359, 226576), (392, 207502), (476, 170884), (578, 140728), (718, 113288), (784, 103751), (833, 97648), (952, 85442), (1156, 70364), (1436, 56644), (1666, 48824), (1904, 42721), (2023, 40208), (2312, 35182), (2513, 32368), (2872, 28322), (3332, 24412), (4046, 20104), (4624, 17591), (5026, 16184), (5744, 14161), (6103, 13328), (6664, 12206), (8092, 10052)]