20176195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 30028320

約数和(自身を除く): 9852125

約数列:

[1, 5, 13, 17, 19, 31, 65, 85, 95, 155, 221, 247, 323, 403, 527, 589, 961, 1105, 1235, 1615, 2015, 2635, 2945, 4199, 4805, 6851, 7657, 10013, 12493, 16337, 18259, 20995, 34255, 38285, 50065, 62465, 81685, 91295, 130169, 212381, 237367, 310403, 650845, 1061905, 1186835, 1552015, 4035239, 20176195]

約数ペア:

[(1, 20176195), (5, 4035239), (13, 1552015), (17, 1186835), (19, 1061905), (31, 650845), (65, 310403), (85, 237367), (95, 212381), (155, 130169), (221, 91295), (247, 81685), (323, 62465), (403, 50065), (527, 38285), (589, 34255), (961, 20995), (1105, 18259), (1235, 16337), (1615, 12493), (2015, 10013), (2635, 7657), (2945, 6851), (4199, 4805)]