2803385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:137

約数の個数: 32

約数和(自身を含む): 3991680

約数和(自身を除く): 1188295

約数列:

[1, 5, 13, 17, 43, 59, 65, 85, 215, 221, 295, 559, 731, 767, 1003, 1105, 2537, 2795, 3655, 3835, 5015, 9503, 12685, 13039, 32981, 43129, 47515, 65195, 164905, 215645, 560677, 2803385]

約数ペア:

[(1, 2803385), (5, 560677), (13, 215645), (17, 164905), (43, 65195), (59, 47515), (65, 43129), (85, 32981), (215, 13039), (221, 12685), (295, 9503), (559, 5015), (731, 3835), (767, 3655), (1003, 2795), (1105, 2537)]