81438242

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1\times {\mathrm{653}}^1$

素因数の和:1273

約数の個数: 16

約数和(自身を含む): 123558912

約数和(自身を除く): 42120670

約数列:

[1, 2, 127, 254, 491, 653, 982, 1306, 62357, 82931, 124714, 165862, 320623, 641246, 40719121, 81438242]

約数ペア:

[(1, 81438242), (2, 40719121), (127, 641246), (254, 320623), (491, 165862), (653, 124714), (982, 82931), (1306, 62357)]