71320015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 106444800

約数和(自身を除く): 35124785

約数列:

[1, 5, 13, 17, 19, 43, 65, 79, 85, 95, 215, 221, 247, 323, 395, 559, 731, 817, 1027, 1105, 1235, 1343, 1501, 1615, 2795, 3397, 3655, 4085, 4199, 5135, 6715, 7505, 9503, 10621, 13889, 16985, 17459, 19513, 20995, 25517, 44161, 47515, 53105, 57749, 64543, 69445, 87295, 97565, 127585, 180557, 220805, 288745, 322715, 331721, 750737, 839059, 902785, 1097231, 1658605, 3753685, 4195295, 5486155, 14264003, 71320015]

約数ペア:

[(1, 71320015), (5, 14264003), (13, 5486155), (17, 4195295), (19, 3753685), (43, 1658605), (65, 1097231), (79, 902785), (85, 839059), (95, 750737), (215, 331721), (221, 322715), (247, 288745), (323, 220805), (395, 180557), (559, 127585), (731, 97565), (817, 87295), (1027, 69445), (1105, 64543), (1235, 57749), (1343, 53105), (1501, 47515), (1615, 44161), (2795, 25517), (3397, 20995), (3655, 19513), (4085, 17459), (4199, 16985), (5135, 13889), (6715, 10621), (7505, 9503)]