207864865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 285810336

約数和(自身を除く): 77945471

約数列:

[1, 5, 13, 17, 65, 85, 221, 313, 601, 1105, 1565, 3005, 4069, 5321, 7813, 10217, 20345, 26605, 39065, 51085, 69173, 132821, 188113, 345865, 664105, 940565, 2445469, 3197921, 12227345, 15989605, 41572973, 207864865]

約数ペア:

[(1, 207864865), (5, 41572973), (13, 15989605), (17, 12227345), (65, 3197921), (85, 2445469), (221, 940565), (313, 664105), (601, 345865), (1105, 188113), (1565, 132821), (3005, 69173), (4069, 51085), (5321, 39065), (7813, 26605), (10217, 20345)]