81257428

素因数分解:

$2^2\times 7^1\times {\mathrm{1279}}^1\times {\mathrm{2269}}^1$

素因数の和:3559

約数の個数: 24

約数和(自身を含む): 162713600

約数和(自身を除く): 81456172

約数列:

[1, 2, 4, 7, 14, 28, 1279, 2269, 2558, 4538, 5116, 8953, 9076, 15883, 17906, 31766, 35812, 63532, 2902051, 5804102, 11608204, 20314357, 40628714, 81257428]

約数ペア:

[(1, 81257428), (2, 40628714), (4, 20314357), (7, 11608204), (14, 5804102), (28, 2902051), (1279, 63532), (2269, 35812), (2558, 31766), (4538, 17906), (5116, 15883), (8953, 9076)]