19434160

素因数分解:

$2^4\times 5^1\times {\mathrm{242927}}^1$

素因数の和:242940

約数の個数: 20

約数和(自身を含む): 45184608

約数和(自身を除く): 25750448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242927, 485854, 971708, 1214635, 1943416, 2429270, 3886832, 4858540, 9717080, 19434160]

約数ペア:

[(1, 19434160), (2, 9717080), (4, 4858540), (5, 3886832), (8, 2429270), (10, 1943416), (16, 1214635), (20, 971708), (40, 485854), (80, 242927)]