71321740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509441}}^1$

素因数の和:509457

約数の個数: 24

約数和(自身を含む): 171172512

約数和(自身を除く): 99850772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509441, 1018882, 2037764, 2547205, 3566087, 5094410, 7132174, 10188820, 14264348, 17830435, 35660870, 71321740]

約数ペア:

[(1, 71321740), (2, 35660870), (4, 17830435), (5, 14264348), (7, 10188820), (10, 7132174), (14, 5094410), (20, 3566087), (28, 2547205), (35, 2037764), (70, 1018882), (140, 509441)]