81139744

素因数分解:

$2^5\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1009}}^1$

素因数の和:1385

約数の個数: 48

約数和(自身を含む): 183254400

約数和(自身を除く): 102114656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 359, 718, 1009, 1436, 2018, 2513, 2872, 4036, 5026, 5744, 7063, 8072, 10052, 11488, 14126, 16144, 20104, 28252, 32288, 40208, 56504, 80416, 113008, 226016, 362231, 724462, 1448924, 2535617, 2897848, 5071234, 5795696, 10142468, 11591392, 20284936, 40569872, 81139744]

約数ペア:

[(1, 81139744), (2, 40569872), (4, 20284936), (7, 11591392), (8, 10142468), (14, 5795696), (16, 5071234), (28, 2897848), (32, 2535617), (56, 1448924), (112, 724462), (224, 362231), (359, 226016), (718, 113008), (1009, 80416), (1436, 56504), (2018, 40208), (2513, 32288), (2872, 28252), (4036, 20104), (5026, 16144), (5744, 14126), (7063, 11488), (8072, 10052)]