81234525

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{25189}}^1$

素因数の和:25245

約数の個数: 24

約数和(自身を含む): 137436640

約数和(自身を除く): 56202115

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 25189, 75567, 125945, 377835, 629725, 1083127, 1889175, 3249381, 5415635, 16246905, 27078175, 81234525]

約数ペア:

[(1, 81234525), (3, 27078175), (5, 16246905), (15, 5415635), (25, 3249381), (43, 1889175), (75, 1083127), (129, 629725), (215, 377835), (645, 125945), (1075, 75567), (3225, 25189)]