166945840

素因数分解:

$2^4\times 5^1\times {\mathrm{2086823}}^1$

素因数の和:2086836

約数の個数: 20

約数和(自身を含む): 388149264

約数和(自身を除く): 221203424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2086823, 4173646, 8347292, 10434115, 16694584, 20868230, 33389168, 41736460, 83472920, 166945840]

約数ペア:

[(1, 166945840), (2, 83472920), (4, 41736460), (5, 33389168), (8, 20868230), (10, 16694584), (16, 10434115), (20, 8347292), (40, 4173646), (80, 2086823)]