19036720

素因数分解:

$2^4\times 5^1\times {\mathrm{237959}}^1$

素因数の和:237972

約数の個数: 20

約数和(自身を含む): 44260560

約数和(自身を除く): 25223840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237959, 475918, 951836, 1189795, 1903672, 2379590, 3807344, 4759180, 9518360, 19036720]

約数ペア:

[(1, 19036720), (2, 9518360), (4, 4759180), (5, 3807344), (8, 2379590), (10, 1903672), (16, 1189795), (20, 951836), (40, 475918), (80, 237959)]