631994

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1285

約数の個数: 16

約数和(自身を含む): 1080000

約数和(自身を除く): 448006

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 1249, 2498, 13739, 27478, 28727, 57454, 315997, 631994]

約数ペア:

[(1, 631994), (2, 315997), (11, 57454), (22, 28727), (23, 27478), (46, 13739), (253, 2498), (506, 1249)]