261988438

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{31271}}^1$

素因数の和:31403

約数の個数: 16

約数和(自身を含む): 405285120

約数和(自身を除く): 143296682

約数列:

[1, 2, 59, 71, 118, 142, 4189, 8378, 31271, 62542, 1844989, 2220241, 3689978, 4440482, 130994219, 261988438]

約数ペア:

[(1, 261988438), (2, 130994219), (59, 4440482), (71, 3689978), (118, 2220241), (142, 1844989), (4189, 62542), (8378, 31271)]