81146480

素因数分解:

$2^4\times 5^1\times {\mathrm{1014331}}^1$

素因数の和:1014344

約数の個数: 20

約数和(自身を含む): 188665752

約数和(自身を除く): 107519272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014331, 2028662, 4057324, 5071655, 8114648, 10143310, 16229296, 20286620, 40573240, 81146480]

約数ペア:

[(1, 81146480), (2, 40573240), (4, 20286620), (5, 16229296), (8, 10143310), (10, 8114648), (16, 5071655), (20, 4057324), (40, 2028662), (80, 1014331)]