200505050

素因数分解:

$2^1\times 5^2\times {\mathrm{4010101}}^1$

素因数の和:4010113

約数の個数: 12

約数和(自身を含む): 372939486

約数和(自身を除く): 172434436

約数列:

[1, 2, 5, 10, 25, 50, 4010101, 8020202, 20050505, 40101010, 100252525, 200505050]

約数ペア:

[(1, 200505050), (2, 100252525), (5, 40101010), (10, 20050505), (25, 8020202), (50, 4010101)]