644256287

素因数分解:

${\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 665159040

約数和(自身を除く): 20902753

約数列:

[1, 53, 181, 239, 281, 9593, 12667, 14893, 43259, 50861, 67159, 2292727, 2695633, 3559427, 12155779, 644256287]

約数ペア:

[(1, 644256287), (53, 12155779), (181, 3559427), (239, 2695633), (281, 2292727), (9593, 67159), (12667, 50861), (14893, 43259)]