291344

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 20

約数和(自身を含む): 572880

約数和(自身を除く): 281536

約数列:

[1, 2, 4, 8, 16, 131, 139, 262, 278, 524, 556, 1048, 1112, 2096, 2224, 18209, 36418, 72836, 145672, 291344]

約数ペア:

[(1, 291344), (2, 145672), (4, 72836), (8, 36418), (16, 18209), (131, 2224), (139, 2096), (262, 1112), (278, 1048), (524, 556)]