261738142

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{20143}}^1$

素因数の和:20307

約数の個数: 16

約数和(自身を含む): 402477120

約数和(自身を除く): 140738978

約数列:

[1, 2, 73, 89, 146, 178, 6497, 12994, 20143, 40286, 1470439, 1792727, 2940878, 3585454, 130869071, 261738142]

約数ペア:

[(1, 261738142), (2, 130869071), (73, 3585454), (89, 2940878), (146, 1792727), (178, 1470439), (6497, 40286), (12994, 20143)]