81637780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583127}}^1$

素因数の和:583143

約数の個数: 24

約数和(自身を含む): 195931008

約数和(自身を除く): 114293228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583127, 1166254, 2332508, 2915635, 4081889, 5831270, 8163778, 11662540, 16327556, 20409445, 40818890, 81637780]

約数ペア:

[(1, 81637780), (2, 40818890), (4, 20409445), (5, 16327556), (7, 11662540), (10, 8163778), (14, 5831270), (20, 4081889), (28, 2915635), (35, 2332508), (70, 1166254), (140, 583127)]