16291230320

素因数分解:

$2^4\times 5^1\times {\mathrm{203640379}}^1$

素因数の和:203640392

約数の個数: 20

約数和(自身を含む): 37877110680

約数和(自身を除く): 21585880360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 203640379, 407280758, 814561516, 1018201895, 1629123032, 2036403790, 3258246064, 4072807580, 8145615160, 16291230320]

約数ペア:

[(1, 16291230320), (2, 8145615160), (4, 4072807580), (5, 3258246064), (8, 2036403790), (10, 1629123032), (16, 1018201895), (20, 814561516), (40, 407280758), (80, 203640379)]