19729120

素因数分解:

$2^5\times 5^1\times {\mathrm{123307}}^1$

素因数の和:123322

約数の個数: 24

約数和(自身を含む): 46610424

約数和(自身を除く): 26881304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123307, 246614, 493228, 616535, 986456, 1233070, 1972912, 2466140, 3945824, 4932280, 9864560, 19729120]

約数ペア:

[(1, 19729120), (2, 9864560), (4, 4932280), (5, 3945824), (8, 2466140), (10, 1972912), (16, 1233070), (20, 986456), (32, 616535), (40, 493228), (80, 246614), (160, 123307)]