81581858

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{5519}}^1$

素因数の和:5929

約数の個数: 16

約数和(自身を含む): 129168000

約数和(自身を除く): 47586142

約数列:

[1, 2, 19, 38, 389, 778, 5519, 7391, 11038, 14782, 104861, 209722, 2146891, 4293782, 40790929, 81581858]

約数ペア:

[(1, 81581858), (2, 40790929), (19, 4293782), (38, 2146891), (389, 209722), (778, 104861), (5519, 14782), (7391, 11038)]