12720585

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6101}}^1$

素因数の和:6248

約数の個数: 16

約数和(自身を含む): 20502720

約数和(自身を除く): 7782135

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 6101, 18303, 30505, 91515, 848039, 2544117, 4240195, 12720585]

約数ペア:

[(1, 12720585), (3, 4240195), (5, 2544117), (15, 848039), (139, 91515), (417, 30505), (695, 18303), (2085, 6101)]