20842160

素因数分解:

$2^4\times 5^1\times {\mathrm{260527}}^1$

素因数の和:260540

約数の個数: 20

約数和(自身を含む): 48458208

約数和(自身を除く): 27616048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260527, 521054, 1042108, 1302635, 2084216, 2605270, 4168432, 5210540, 10421080, 20842160]

約数ペア:

[(1, 20842160), (2, 10421080), (4, 5210540), (5, 4168432), (8, 2605270), (10, 2084216), (16, 1302635), (20, 1042108), (40, 521054), (80, 260527)]