261129898

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{16339}}^1$

素因数の和:16533

約数の個数: 16

約数和(自身を含む): 401179680

約数和(自身を除く): 140049782

約数列:

[1, 2, 61, 122, 131, 262, 7991, 15982, 16339, 32678, 996679, 1993358, 2140409, 4280818, 130564949, 261129898]

約数ペア:

[(1, 261129898), (2, 130564949), (61, 4280818), (122, 2140409), (131, 1993358), (262, 996679), (7991, 32678), (15982, 16339)]