80520385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2657}}^1$

素因数の和:2721

約数の個数: 32

約数和(自身を含む): 114825600

約数和(自身を除く): 34305215

約数列:

[1, 5, 11, 19, 29, 55, 95, 145, 209, 319, 551, 1045, 1595, 2657, 2755, 6061, 13285, 29227, 30305, 50483, 77053, 146135, 252415, 385265, 555313, 847583, 1464007, 2776565, 4237915, 7320035, 16104077, 80520385]

約数ペア:

[(1, 80520385), (5, 16104077), (11, 7320035), (19, 4237915), (29, 2776565), (55, 1464007), (95, 847583), (145, 555313), (209, 385265), (319, 252415), (551, 146135), (1045, 77053), (1595, 50483), (2657, 30305), (2755, 29227), (6061, 13285)]