128568656

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{259211}}^1$

素因数の和:259250

約数の個数: 20

約数和(自身を含む): 257138304

約数和(自身を除く): 128569648

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 259211, 518422, 1036844, 2073688, 4147376, 8035541, 16071082, 32142164, 64284328, 128568656]

約数ペア:

[(1, 128568656), (2, 64284328), (4, 32142164), (8, 16071082), (16, 8035541), (31, 4147376), (62, 2073688), (124, 1036844), (248, 518422), (496, 259211)]