18204740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 39919152

約数和(自身を除く): 21714412

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 337, 365, 370, 674, 730, 740, 1348, 1460, 1685, 2701, 3370, 5402, 6740, 10804, 12469, 13505, 24601, 24938, 27010, 49202, 49876, 54020, 62345, 98404, 123005, 124690, 246010, 249380, 492020, 910237, 1820474, 3640948, 4551185, 9102370, 18204740]

約数ペア:

[(1, 18204740), (2, 9102370), (4, 4551185), (5, 3640948), (10, 1820474), (20, 910237), (37, 492020), (73, 249380), (74, 246010), (146, 124690), (148, 123005), (185, 98404), (292, 62345), (337, 54020), (365, 49876), (370, 49202), (674, 27010), (730, 24938), (740, 24601), (1348, 13505), (1460, 12469), (1685, 10804), (2701, 6740), (3370, 5402)]