12743965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 5641955

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 607, 1105, 1235, 1615, 3035, 4199, 7891, 10319, 11533, 20995, 39455, 51595, 57665, 134147, 149929, 196061, 670735, 749645, 980305, 2548793, 12743965]

約数ペア:

[(1, 12743965), (5, 2548793), (13, 980305), (17, 749645), (19, 670735), (65, 196061), (85, 149929), (95, 134147), (221, 57665), (247, 51595), (323, 39455), (607, 20995), (1105, 11533), (1235, 10319), (1615, 7891), (3035, 4199)]