81430515

素因数分解:

$3^5\times 5^1\times {\mathrm{67021}}^1$

素因数の和:67041

約数の個数: 24

約数和(自身を含む): 146376048

約数和(自身を除く): 64945533

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 67021, 201063, 335105, 603189, 1005315, 1809567, 3015945, 5428701, 9047835, 16286103, 27143505, 81430515]

約数ペア:

[(1, 81430515), (3, 27143505), (5, 16286103), (9, 9047835), (15, 5428701), (27, 3015945), (45, 1809567), (81, 1005315), (135, 603189), (243, 335105), (405, 201063), (1215, 67021)]