80936780

素因数分解:

$2^2\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{2789}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 170145360

約数和(自身を除く): 89208580

約数列:

[1, 2, 4, 5, 10, 20, 1451, 2789, 2902, 5578, 5804, 7255, 11156, 13945, 14510, 27890, 29020, 55780, 4046839, 8093678, 16187356, 20234195, 40468390, 80936780]

約数ペア:

[(1, 80936780), (2, 40468390), (4, 20234195), (5, 16187356), (10, 8093678), (20, 4046839), (1451, 55780), (2789, 29020), (2902, 27890), (5578, 14510), (5804, 13945), (7255, 11156)]