28645820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204613}}^1$

素因数の和:204629

約数の個数: 24

約数和(自身を含む): 68750304

約数和(自身を除く): 40104484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204613, 409226, 818452, 1023065, 1432291, 2046130, 2864582, 4092260, 5729164, 7161455, 14322910, 28645820]

約数ペア:

[(1, 28645820), (2, 14322910), (4, 7161455), (5, 5729164), (7, 4092260), (10, 2864582), (14, 2046130), (20, 1432291), (28, 1023065), (35, 818452), (70, 409226), (140, 204613)]