19209040

素因数分解:

$2^4\times 5^1\times {\mathrm{240113}}^1$

素因数の和:240126

約数の個数: 20

約数和(自身を含む): 44661204

約数和(自身を除く): 25452164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240113, 480226, 960452, 1200565, 1920904, 2401130, 3841808, 4802260, 9604520, 19209040]

約数ペア:

[(1, 19209040), (2, 9604520), (4, 4802260), (5, 3841808), (8, 2401130), (10, 1920904), (16, 1200565), (20, 960452), (40, 480226), (80, 240113)]