81905152

素因数分解:

$2^9\times 7^1\times {\mathrm{22853}}^1$

素因数の和:22878

約数の個数: 40

約数和(自身を含む): 187037136

約数和(自身を除く): 105131984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 22853, 45706, 91412, 159971, 182824, 319942, 365648, 639884, 731296, 1279768, 1462592, 2559536, 2925184, 5119072, 5850368, 10238144, 11700736, 20476288, 40952576, 81905152]

約数ペア:

[(1, 81905152), (2, 40952576), (4, 20476288), (7, 11700736), (8, 10238144), (14, 5850368), (16, 5119072), (28, 2925184), (32, 2559536), (56, 1462592), (64, 1279768), (112, 731296), (128, 639884), (224, 365648), (256, 319942), (448, 182824), (512, 159971), (896, 91412), (1792, 45706), (3584, 22853)]