19802570

素因数分解:

$2^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{5309}}^1$

素因数の和:5689

約数の個数: 16

約数和(自身を含む): 35746920

約数和(自身を除く): 15944350

約数列:

[1, 2, 5, 10, 373, 746, 1865, 3730, 5309, 10618, 26545, 53090, 1980257, 3960514, 9901285, 19802570]

約数ペア:

[(1, 19802570), (2, 9901285), (5, 3960514), (10, 1980257), (373, 53090), (746, 26545), (1865, 10618), (3730, 5309)]