90016888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{20129}}^1$

素因数の和:20191

約数の個数: 32

約数和(自身を含む): 186001200

約数和(自身を除く): 95984312

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 20129, 40258, 80516, 161032, 261677, 523354, 865547, 1046708, 1731094, 2093416, 3462188, 6924376, 11252111, 22504222, 45008444, 90016888]

約数ペア:

[(1, 90016888), (2, 45008444), (4, 22504222), (8, 11252111), (13, 6924376), (26, 3462188), (43, 2093416), (52, 1731094), (86, 1046708), (104, 865547), (172, 523354), (344, 261677), (559, 161032), (1118, 80516), (2236, 40258), (4472, 20129)]