138153988

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{55439}}^1$

素因数の和:55539

約数の個数: 24

約数和(自身を含む): 279417600

約数和(自身を除く): 141263612

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 55439, 110878, 221756, 388073, 776146, 1552292, 4934071, 9868142, 19736284, 34538497, 69076994, 138153988]

約数ペア:

[(1, 138153988), (2, 69076994), (4, 34538497), (7, 19736284), (14, 9868142), (28, 4934071), (89, 1552292), (178, 776146), (356, 388073), (623, 221756), (1246, 110878), (2492, 55439)]