15977195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 23042880

約数和(自身を除く): 7065685

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 761, 1105, 1235, 1615, 3805, 4199, 9893, 12937, 14459, 20995, 49465, 64685, 72295, 168181, 187967, 245803, 840905, 939835, 1229015, 3195439, 15977195]

約数ペア:

[(1, 15977195), (5, 3195439), (13, 1229015), (17, 939835), (19, 840905), (65, 245803), (85, 187967), (95, 168181), (221, 72295), (247, 64685), (323, 49465), (761, 20995), (1105, 14459), (1235, 12937), (1615, 9893), (3805, 4199)]