12778265

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{751}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 15918336

約数和(自身を除く): 3140071

約数列:

[1, 5, 41, 83, 205, 415, 751, 3403, 3755, 17015, 30791, 62333, 153955, 311665, 2555653, 12778265]

約数ペア:

[(1, 12778265), (5, 2555653), (41, 311665), (83, 153955), (205, 62333), (415, 30791), (751, 17015), (3403, 3755)]