20856080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37243}}^1$

素因数の和:37263

約数の個数: 40

約数和(自身を含む): 55419072

約数和(自身を除く): 34562992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37243, 74486, 148972, 186215, 260701, 297944, 372430, 521402, 595888, 744860, 1042804, 1303505, 1489720, 2085608, 2607010, 2979440, 4171216, 5214020, 10428040, 20856080]

約数ペア:

[(1, 20856080), (2, 10428040), (4, 5214020), (5, 4171216), (7, 2979440), (8, 2607010), (10, 2085608), (14, 1489720), (16, 1303505), (20, 1042804), (28, 744860), (35, 595888), (40, 521402), (56, 372430), (70, 297944), (80, 260701), (112, 186215), (140, 148972), (280, 74486), (560, 37243)]