80821785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6899}}^1$

素因数の和:6989

約数の個数: 32

約数和(自身を含む): 143078400

約数和(自身を除く): 62256615

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 3905, 6899, 11715, 20697, 34495, 75889, 103485, 227667, 379445, 489829, 1138335, 1469487, 2449145, 5388119, 7347435, 16164357, 26940595, 80821785]

約数ペア:

[(1, 80821785), (3, 26940595), (5, 16164357), (11, 7347435), (15, 5388119), (33, 2449145), (55, 1469487), (71, 1138335), (165, 489829), (213, 379445), (355, 227667), (781, 103485), (1065, 75889), (2343, 34495), (3905, 20697), (6899, 11715)]