20446960

素因数分解:

$2^4\times 5^1\times {\mathrm{255587}}^1$

素因数の和:255600

約数の個数: 20

約数和(自身を含む): 47539368

約数和(自身を除く): 27092408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255587, 511174, 1022348, 1277935, 2044696, 2555870, 4089392, 5111740, 10223480, 20446960]

約数ペア:

[(1, 20446960), (2, 10223480), (4, 5111740), (5, 4089392), (8, 2555870), (10, 2044696), (16, 1277935), (20, 1022348), (40, 511174), (80, 255587)]