20070766

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 32820480

約数和(自身を除く): 12749714

約数列:

[1, 2, 23, 43, 46, 73, 86, 139, 146, 278, 989, 1679, 1978, 3139, 3197, 3358, 5977, 6278, 6394, 10147, 11954, 20294, 72197, 137471, 144394, 233381, 274942, 436321, 466762, 872642, 10035383, 20070766]

約数ペア:

[(1, 20070766), (2, 10035383), (23, 872642), (43, 466762), (46, 436321), (73, 274942), (86, 233381), (139, 144394), (146, 137471), (278, 72197), (989, 20294), (1679, 11954), (1978, 10147), (3139, 6394), (3197, 6278), (3358, 5977)]