20175243487

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1889}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 24857189280

約数和(自身を除く): 4681945793

約数列:

[1, 7, 37, 43, 49, 137, 259, 301, 959, 1591, 1813, 1889, 2107, 5069, 5891, 6713, 11137, 13223, 35483, 41237, 69893, 77959, 81227, 92561, 217967, 248381, 258793, 288659, 489251, 568589, 1525769, 1811551, 3005399, 3424757, 3980123, 9575341, 10680383, 11128099, 12680857, 21037793, 67027387, 77896693, 147264551, 411739663, 469191709, 545276851, 2882177641, 20175243487]

約数ペア:

[(1, 20175243487), (7, 2882177641), (37, 545276851), (43, 469191709), (49, 411739663), (137, 147264551), (259, 77896693), (301, 67027387), (959, 21037793), (1591, 12680857), (1813, 11128099), (1889, 10680383), (2107, 9575341), (5069, 3980123), (5891, 3424757), (6713, 3005399), (11137, 1811551), (13223, 1525769), (35483, 568589), (41237, 489251), (69893, 288659), (77959, 258793), (81227, 248381), (92561, 217967)]