81279522

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{63599}}^1$

素因数の和:63678

約数の個数: 24

約数和(自身を含む): 178588800

約数和(自身を除く): 97309278

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 63599, 127198, 190797, 381594, 572391, 1144782, 4515529, 9031058, 13546587, 27093174, 40639761, 81279522]

約数ペア:

[(1, 81279522), (2, 40639761), (3, 27093174), (6, 13546587), (9, 9031058), (18, 4515529), (71, 1144782), (142, 572391), (213, 381594), (426, 190797), (639, 127198), (1278, 63599)]