18022280

素因数分解:

$2^3\times 5^1\times {\mathrm{450557}}^1$

素因数の和:450568

約数の個数: 16

約数和(自身を含む): 40550220

約数和(自身を除く): 22527940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 450557, 901114, 1802228, 2252785, 3604456, 4505570, 9011140, 18022280]

約数ペア:

[(1, 18022280), (2, 9011140), (4, 4505570), (5, 3604456), (8, 2252785), (10, 1802228), (20, 901114), (40, 450557)]