81239515

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{136537}}^1$

素因数の和:136566

約数の個数: 16

約数和(自身を含む): 117968832

約数和(自身を除く): 36729317

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 136537, 682685, 955759, 2321129, 4778795, 11605645, 16247903, 81239515]

約数ペア:

[(1, 81239515), (5, 16247903), (7, 11605645), (17, 4778795), (35, 2321129), (85, 955759), (119, 682685), (595, 136537)]