20483080

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1277}}^1$

素因数の和:1689

約数の個数: 32

約数和(自身を含む): 46238040

約数和(自身を除く): 25754960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1277, 1604, 2005, 2554, 3208, 4010, 5108, 6385, 8020, 10216, 12770, 16040, 25540, 51080, 512077, 1024154, 2048308, 2560385, 4096616, 5120770, 10241540, 20483080]

約数ペア:

[(1, 20483080), (2, 10241540), (4, 5120770), (5, 4096616), (8, 2560385), (10, 2048308), (20, 1024154), (40, 512077), (401, 51080), (802, 25540), (1277, 16040), (1604, 12770), (2005, 10216), (2554, 8020), (3208, 6385), (4010, 5108)]