18289025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1871}}^1$

素因数の和:1921

約数の個数: 24

約数和(自身を含む): 25069824

約数和(自身を除く): 6780799

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1871, 1955, 9355, 9775, 31807, 43033, 46775, 159035, 215165, 731561, 795175, 1075825, 3657805, 18289025]

約数ペア:

[(1, 18289025), (5, 3657805), (17, 1075825), (23, 795175), (25, 731561), (85, 215165), (115, 159035), (391, 46775), (425, 43033), (575, 31807), (1871, 9775), (1955, 9355)]