20387230

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22907}}^1$

素因数の和:23003

約数の個数: 16

約数和(自身を含む): 37110960

約数和(自身を除く): 16723730

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22907, 45814, 114535, 229070, 2038723, 4077446, 10193615, 20387230]

約数ペア:

[(1, 20387230), (2, 10193615), (5, 4077446), (10, 2038723), (89, 229070), (178, 114535), (445, 45814), (890, 22907)]