81640075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{353}}^1$

素因数の和:432

約数の個数: 36

約数和(自身を含む): 114700248

約数和(自身を除く): 33060173

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 353, 725, 841, 1595, 1765, 3883, 4205, 7975, 8825, 9251, 10237, 19415, 21025, 46255, 51185, 97075, 112607, 231275, 255925, 296873, 563035, 1484365, 2815175, 3265603, 7421825, 16328015, 81640075]

約数ペア:

[(1, 81640075), (5, 16328015), (11, 7421825), (25, 3265603), (29, 2815175), (55, 1484365), (145, 563035), (275, 296873), (319, 255925), (353, 231275), (725, 112607), (841, 97075), (1595, 51185), (1765, 46255), (3883, 21025), (4205, 19415), (7975, 10237), (8825, 9251)]