18863120

素因数分解:

$2^4\times 5^1\times {\mathrm{235789}}^1$

素因数の和:235802

約数の個数: 20

約数和(自身を含む): 43856940

約数和(自身を除く): 24993820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235789, 471578, 943156, 1178945, 1886312, 2357890, 3772624, 4715780, 9431560, 18863120]

約数ペア:

[(1, 18863120), (2, 9431560), (4, 4715780), (5, 3772624), (8, 2357890), (10, 1886312), (16, 1178945), (20, 943156), (40, 471578), (80, 235789)]