261532660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{165527}}^1$

素因数の和:165615

約数の個数: 24

約数和(自身を含む): 556174080

約数和(自身を除く): 294641420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 165527, 331054, 662108, 827635, 1655270, 3310540, 13076633, 26153266, 52306532, 65383165, 130766330, 261532660]

約数ペア:

[(1, 261532660), (2, 130766330), (4, 65383165), (5, 52306532), (10, 26153266), (20, 13076633), (79, 3310540), (158, 1655270), (316, 827635), (395, 662108), (790, 331054), (1580, 165527)]