647515184

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{308929}}^1$

素因数の和:309068

約数の個数: 20

約数和(自身を含む): 1264141560

約数和(自身を除く): 616626376

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 308929, 617858, 1235716, 2471432, 4942864, 40469699, 80939398, 161878796, 323757592, 647515184]

約数ペア:

[(1, 647515184), (2, 323757592), (4, 161878796), (8, 80939398), (16, 40469699), (131, 4942864), (262, 2471432), (524, 1235716), (1048, 617858), (2096, 308929)]