209301020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{132469}}^1$

素因数の和:132557

約数の個数: 24

約数和(自身を含む): 445099200

約数和(自身を除く): 235798180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 132469, 264938, 529876, 662345, 1324690, 2649380, 10465051, 20930102, 41860204, 52325255, 104650510, 209301020]

約数ペア:

[(1, 209301020), (2, 104650510), (4, 52325255), (5, 41860204), (10, 20930102), (20, 10465051), (79, 2649380), (158, 1324690), (316, 662345), (395, 529876), (790, 264938), (1580, 132469)]