665004272

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{264731}}^1$

素因数の和:264896

約数の個数: 20

約数和(自身を含む): 1296657336

約数和(自身を除く): 631653064

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 264731, 529462, 1058924, 2117848, 4235696, 41562767, 83125534, 166251068, 332502136, 665004272]

約数ペア:

[(1, 665004272), (2, 332502136), (4, 166251068), (8, 83125534), (16, 41562767), (157, 4235696), (314, 2117848), (628, 1058924), (1256, 529462), (2512, 264731)]