81380516

素因数分解:

$2^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{15217}}^1$

素因数の和:15419

約数の個数: 24

約数和(自身を含む): 163623936

約数和(自身を除く): 82243420

約数列:

[1, 2, 4, 7, 14, 28, 191, 382, 764, 1337, 2674, 5348, 15217, 30434, 60868, 106519, 213038, 426076, 2906447, 5812894, 11625788, 20345129, 40690258, 81380516]

約数ペア:

[(1, 81380516), (2, 40690258), (4, 20345129), (7, 11625788), (14, 5812894), (28, 2906447), (191, 426076), (382, 213038), (764, 106519), (1337, 60868), (2674, 30434), (5348, 15217)]