16028840

素因数分解:

$2^3\times 5^1\times {\mathrm{400721}}^1$

素因数の和:400732

約数の個数: 16

約数和(自身を含む): 36064980

約数和(自身を除く): 20036140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 400721, 801442, 1602884, 2003605, 3205768, 4007210, 8014420, 16028840]

約数ペア:

[(1, 16028840), (2, 8014420), (4, 4007210), (5, 3205768), (8, 2003605), (10, 1602884), (20, 801442), (40, 400721)]