13239745

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 16373952

約数和(自身を除く): 3134207

約数列:

[1, 5, 61, 83, 305, 415, 523, 2615, 5063, 25315, 31903, 43409, 159515, 217045, 2647949, 13239745]

約数ペア:

[(1, 13239745), (5, 2647949), (61, 217045), (83, 159515), (305, 43409), (415, 31903), (523, 25315), (2615, 5063)]