18062680

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1607}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 40811040

約数和(自身を除く): 22748360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 1607, 2248, 2810, 3214, 5620, 6428, 8035, 11240, 12856, 16070, 32140, 64280, 451567, 903134, 1806268, 2257835, 3612536, 4515670, 9031340, 18062680]

約数ペア:

[(1, 18062680), (2, 9031340), (4, 4515670), (5, 3612536), (8, 2257835), (10, 1806268), (20, 903134), (40, 451567), (281, 64280), (562, 32140), (1124, 16070), (1405, 12856), (1607, 11240), (2248, 8035), (2810, 6428), (3214, 5620)]