12680915

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 16909200

約数和(自身を除く): 4228285

約数列:

[1, 5, 13, 43, 65, 169, 215, 349, 559, 845, 1745, 2795, 4537, 7267, 15007, 22685, 36335, 58981, 75035, 195091, 294905, 975455, 2536183, 12680915]

約数ペア:

[(1, 12680915), (5, 2536183), (13, 975455), (43, 294905), (65, 195091), (169, 75035), (215, 58981), (349, 36335), (559, 22685), (845, 15007), (1745, 7267), (2795, 4537)]