81386620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{581333}}^1$

素因数の和:581349

約数の個数: 24

約数和(自身を含む): 195328224

約数和(自身を除く): 113941604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581333, 1162666, 2325332, 2906665, 4069331, 5813330, 8138662, 11626660, 16277324, 20346655, 40693310, 81386620]

約数ペア:

[(1, 81386620), (2, 40693310), (4, 20346655), (5, 16277324), (7, 11626660), (10, 8138662), (14, 5813330), (20, 4069331), (28, 2906665), (35, 2325332), (70, 1162666), (140, 581333)]