81434905

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1\times {\mathrm{727}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 100324224

約数和(自身を除く): 18889319

約数列:

[1, 5, 43, 215, 521, 727, 2605, 3635, 22403, 31261, 112015, 156305, 378767, 1893835, 16286981, 81434905]

約数ペア:

[(1, 81434905), (5, 16286981), (43, 1893835), (215, 378767), (521, 156305), (727, 112015), (2605, 31261), (3635, 22403)]