28402570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 60963840

約数和(自身を除く): 32561270

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 89, 94, 97, 178, 194, 235, 329, 445, 470, 485, 623, 658, 679, 890, 970, 1246, 1358, 1645, 3115, 3290, 3395, 4183, 4559, 6230, 6790, 8366, 8633, 9118, 17266, 20915, 22795, 29281, 31913, 41830, 43165, 45590, 58562, 60431, 63826, 86330, 120862, 146405, 159565, 292810, 302155, 319130, 405751, 604310, 811502, 2028755, 2840257, 4057510, 5680514, 14201285, 28402570]

約数ペア:

[(1, 28402570), (2, 14201285), (5, 5680514), (7, 4057510), (10, 2840257), (14, 2028755), (35, 811502), (47, 604310), (70, 405751), (89, 319130), (94, 302155), (97, 292810), (178, 159565), (194, 146405), (235, 120862), (329, 86330), (445, 63826), (470, 60431), (485, 58562), (623, 45590), (658, 43165), (679, 41830), (890, 31913), (970, 29281), (1246, 22795), (1358, 20915), (1645, 17266), (3115, 9118), (3290, 8633), (3395, 8366), (4183, 6790), (4559, 6230)]