20705888

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4019}}^1$

素因数の和:4059

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 27920032

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4019, 5152, 8038, 16076, 28133, 32152, 56266, 64304, 92437, 112532, 128608, 184874, 225064, 369748, 450128, 647059, 739496, 900256, 1294118, 1478992, 2588236, 2957984, 5176472, 10352944, 20705888]

約数ペア:

[(1, 20705888), (2, 10352944), (4, 5176472), (7, 2957984), (8, 2588236), (14, 1478992), (16, 1294118), (23, 900256), (28, 739496), (32, 647059), (46, 450128), (56, 369748), (92, 225064), (112, 184874), (161, 128608), (184, 112532), (224, 92437), (322, 64304), (368, 56266), (644, 32152), (736, 28133), (1288, 16076), (2576, 8038), (4019, 5152)]