20511080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5077}}^1$

素因数の和:5189

約数の個数: 32

約数和(自身を含む): 46616040

約数和(自身を除く): 26104960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5077, 10154, 20308, 25385, 40616, 50770, 101540, 203080, 512777, 1025554, 2051108, 2563885, 4102216, 5127770, 10255540, 20511080]

約数ペア:

[(1, 20511080), (2, 10255540), (4, 5127770), (5, 4102216), (8, 2563885), (10, 2051108), (20, 1025554), (40, 512777), (101, 203080), (202, 101540), (404, 50770), (505, 40616), (808, 25385), (1010, 20308), (2020, 10154), (4040, 5077)]