20650130

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4057}}^1$

素因数の和:4573

約数の個数: 16

約数和(自身を含む): 37252440

約数和(自身を除く): 16602310

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 4057, 5090, 8114, 20285, 40570, 2065013, 4130026, 10325065, 20650130]

約数ペア:

[(1, 20650130), (2, 10325065), (5, 4130026), (10, 2065013), (509, 40570), (1018, 20285), (2545, 8114), (4057, 5090)]