12641785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4523}}^1$

素因数の和:4584

約数の個数: 16

約数和(自身を含む): 16720704

約数和(自身を除く): 4078919

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 4523, 22615, 58799, 194489, 293995, 972445, 2528357, 12641785]

約数ペア:

[(1, 12641785), (5, 2528357), (13, 972445), (43, 293995), (65, 194489), (215, 58799), (559, 22615), (2795, 4523)]