204619640

素因数分解:

$2^3\times 5^1\times {\mathrm{5115491}}^1$

素因数の和:5115502

約数の個数: 16

約数和(自身を含む): 460394280

約数和(自身を除く): 255774640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5115491, 10230982, 20461964, 25577455, 40923928, 51154910, 102309820, 204619640]

約数ペア:

[(1, 204619640), (2, 102309820), (4, 51154910), (5, 40923928), (8, 25577455), (10, 20461964), (20, 10230982), (40, 5115491)]