19203440

素因数分解:

$2^4\times 5^1\times {\mathrm{240043}}^1$

素因数の和:240056

約数の個数: 20

約数和(自身を含む): 44648184

約数和(自身を除く): 25444744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240043, 480086, 960172, 1200215, 1920344, 2400430, 3840688, 4800860, 9601720, 19203440]

約数ペア:

[(1, 19203440), (2, 9601720), (4, 4800860), (5, 3840688), (8, 2400430), (10, 1920344), (16, 1200215), (20, 960172), (40, 480086), (80, 240043)]