219325820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1566613}}^1$

素因数の和:1566629

約数の個数: 24

約数和(自身を含む): 526382304

約数和(自身を除く): 307056484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1566613, 3133226, 6266452, 7833065, 10966291, 15666130, 21932582, 31332260, 43865164, 54831455, 109662910, 219325820]

約数ペア:

[(1, 219325820), (2, 109662910), (4, 54831455), (5, 43865164), (7, 31332260), (10, 21932582), (14, 15666130), (20, 10966291), (28, 7833065), (35, 6266452), (70, 3133226), (140, 1566613)]