18732440

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2707}}^1$

素因数の和:2891

約数の個数: 32

約数和(自身を含む): 42407280

約数和(自身を除く): 23674840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2707, 3460, 5414, 6920, 10828, 13535, 21656, 27070, 54140, 108280, 468311, 936622, 1873244, 2341555, 3746488, 4683110, 9366220, 18732440]

約数ペア:

[(1, 18732440), (2, 9366220), (4, 4683110), (5, 3746488), (8, 2341555), (10, 1873244), (20, 936622), (40, 468311), (173, 108280), (346, 54140), (692, 27070), (865, 21656), (1384, 13535), (1730, 10828), (2707, 6920), (3460, 5414)]