80347865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 119750400

約数和(自身を除く): 39402535

約数列:

[1, 5, 13, 17, 19, 43, 65, 85, 89, 95, 215, 221, 247, 323, 445, 559, 731, 817, 1105, 1157, 1235, 1513, 1615, 1691, 2795, 3655, 3827, 4085, 4199, 5785, 7565, 8455, 9503, 10621, 13889, 19135, 19669, 20995, 21983, 28747, 47515, 49751, 53105, 65059, 69445, 72713, 98345, 109915, 143735, 180557, 248755, 325295, 363565, 373711, 845767, 902785, 945269, 1236121, 1868555, 4228835, 4726345, 6180605, 16069573, 80347865]

約数ペア:

[(1, 80347865), (5, 16069573), (13, 6180605), (17, 4726345), (19, 4228835), (43, 1868555), (65, 1236121), (85, 945269), (89, 902785), (95, 845767), (215, 373711), (221, 363565), (247, 325295), (323, 248755), (445, 180557), (559, 143735), (731, 109915), (817, 98345), (1105, 72713), (1157, 69445), (1235, 65059), (1513, 53105), (1615, 49751), (1691, 47515), (2795, 28747), (3655, 21983), (3827, 20995), (4085, 19669), (4199, 19135), (5785, 13889), (7565, 10621), (8455, 9503)]