7856745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 13867392

約数和(自身を除く): 6010647

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 937, 1677, 2795, 2811, 4685, 8385, 12181, 14055, 36543, 40291, 60905, 120873, 182715, 201455, 523783, 604365, 1571349, 2618915, 7856745]

約数ペア:

[(1, 7856745), (3, 2618915), (5, 1571349), (13, 604365), (15, 523783), (39, 201455), (43, 182715), (65, 120873), (129, 60905), (195, 40291), (215, 36543), (559, 14055), (645, 12181), (937, 8385), (1677, 4685), (2795, 2811)]