1345840

素因数分解:

$2^4\times 5^1\times {\mathrm{16823}}^1$

素因数の和:16836

約数の個数: 20

約数和(自身を含む): 3129264

約数和(自身を除く): 1783424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16823, 33646, 67292, 84115, 134584, 168230, 269168, 336460, 672920, 1345840]

約数ペア:

[(1, 1345840), (2, 672920), (4, 336460), (5, 269168), (8, 168230), (10, 134584), (16, 84115), (20, 67292), (40, 33646), (80, 16823)]