28665140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204751}}^1$

素因数の和:204767

約数の個数: 24

約数和(自身を含む): 68796672

約数和(自身を除く): 40131532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204751, 409502, 819004, 1023755, 1433257, 2047510, 2866514, 4095020, 5733028, 7166285, 14332570, 28665140]

約数ペア:

[(1, 28665140), (2, 14332570), (4, 7166285), (5, 5733028), (7, 4095020), (10, 2866514), (14, 2047510), (20, 1433257), (28, 1023755), (35, 819004), (70, 409502), (140, 204751)]