12878480

素因数分解:

$2^4\times 5^1\times {\mathrm{160981}}^1$

素因数の和:160994

約数の個数: 20

約数和(自身を含む): 29942652

約数和(自身を除く): 17064172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160981, 321962, 643924, 804905, 1287848, 1609810, 2575696, 3219620, 6439240, 12878480]

約数ペア:

[(1, 12878480), (2, 6439240), (4, 3219620), (5, 2575696), (8, 1609810), (10, 1287848), (16, 804905), (20, 643924), (40, 321962), (80, 160981)]