87431255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 119750400

約数和(自身を除く): 32319145

約数列:

[1, 5, 17, 19, 43, 85, 95, 215, 323, 731, 817, 1259, 1615, 3655, 4085, 6295, 13889, 21403, 23921, 54137, 69445, 107015, 119605, 270685, 406657, 920329, 1028603, 2033285, 4601645, 5143015, 17486251, 87431255]

約数ペア:

[(1, 87431255), (5, 17486251), (17, 5143015), (19, 4601645), (43, 2033285), (85, 1028603), (95, 920329), (215, 406657), (323, 270685), (731, 119605), (817, 107015), (1259, 69445), (1615, 54137), (3655, 23921), (4085, 21403), (6295, 13889)]