19822480

素因数分解:

$2^4\times 5^1\times {\mathrm{247781}}^1$

素因数の和:247794

約数の個数: 20

約数和(自身を含む): 46087452

約数和(自身を除く): 26264972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 247781, 495562, 991124, 1238905, 1982248, 2477810, 3964496, 4955620, 9911240, 19822480]

約数ペア:

[(1, 19822480), (2, 9911240), (4, 4955620), (5, 3964496), (8, 2477810), (10, 1982248), (16, 1238905), (20, 991124), (40, 495562), (80, 247781)]