31356280

素因数分解:

$2^3\times 5^1\times {\mathrm{853}}^1\times {\mathrm{919}}^1$

素因数の和:1783

約数の個数: 32

約数和(自身を含む): 70711200

約数和(自身を除く): 39354920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 853, 919, 1706, 1838, 3412, 3676, 4265, 4595, 6824, 7352, 8530, 9190, 17060, 18380, 34120, 36760, 783907, 1567814, 3135628, 3919535, 6271256, 7839070, 15678140, 31356280]

約数ペア:

[(1, 31356280), (2, 15678140), (4, 7839070), (5, 6271256), (8, 3919535), (10, 3135628), (20, 1567814), (40, 783907), (853, 36760), (919, 34120), (1706, 18380), (1838, 17060), (3412, 9190), (3676, 8530), (4265, 7352), (4595, 6824)]