81405312

素因数分解:

$2^7\times 3^1\times {\mathrm{239}}^1\times {\mathrm{887}}^1$

素因数の和:1143

約数の個数: 64

約数和(自身を含む): 217382400

約数和(自身を除く): 135977088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 239, 384, 478, 717, 887, 956, 1434, 1774, 1912, 2661, 2868, 3548, 3824, 5322, 5736, 7096, 7648, 10644, 11472, 14192, 15296, 21288, 22944, 28384, 30592, 42576, 45888, 56768, 85152, 91776, 113536, 170304, 211993, 340608, 423986, 635979, 847972, 1271958, 1695944, 2543916, 3391888, 5087832, 6783776, 10175664, 13567552, 20351328, 27135104, 40702656, 81405312]

約数ペア:

[(1, 81405312), (2, 40702656), (3, 27135104), (4, 20351328), (6, 13567552), (8, 10175664), (12, 6783776), (16, 5087832), (24, 3391888), (32, 2543916), (48, 1695944), (64, 1271958), (96, 847972), (128, 635979), (192, 423986), (239, 340608), (384, 211993), (478, 170304), (717, 113536), (887, 91776), (956, 85152), (1434, 56768), (1774, 45888), (1912, 42576), (2661, 30592), (2868, 28384), (3548, 22944), (3824, 21288), (5322, 15296), (5736, 14192), (7096, 11472), (7648, 10644)]