20916276640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18675247}}^1$

素因数の和:18675269

約数の個数: 48

約数和(自身を含む): 56473949952

約数和(自身を除く): 35557673312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18675247, 37350494, 74700988, 93376235, 130726729, 149401976, 186752470, 261453458, 298803952, 373504940, 522906916, 597607904, 653633645, 747009880, 1045813832, 1307267290, 1494019760, 2091627664, 2614534580, 2988039520, 4183255328, 5229069160, 10458138320, 20916276640]

約数ペア:

[(1, 20916276640), (2, 10458138320), (4, 5229069160), (5, 4183255328), (7, 2988039520), (8, 2614534580), (10, 2091627664), (14, 1494019760), (16, 1307267290), (20, 1045813832), (28, 747009880), (32, 653633645), (35, 597607904), (40, 522906916), (56, 373504940), (70, 298803952), (80, 261453458), (112, 186752470), (140, 149401976), (160, 130726729), (224, 93376235), (280, 74700988), (560, 37350494), (1120, 18675247)]