20467760

素因数分解:

$2^4\times 5^1\times {\mathrm{255847}}^1$

素因数の和:255860

約数の個数: 20

約数和(自身を含む): 47587728

約数和(自身を除く): 27119968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255847, 511694, 1023388, 1279235, 2046776, 2558470, 4093552, 5116940, 10233880, 20467760]

約数ペア:

[(1, 20467760), (2, 10233880), (4, 5116940), (5, 4093552), (8, 2558470), (10, 2046776), (16, 1279235), (20, 1023388), (40, 511694), (80, 255847)]