18804490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5209}}^1$

素因数の和:5254

約数の個数: 24

約数和(自身を含む): 35730180

約数和(自身を除く): 16925690

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5209, 10418, 26045, 52090, 98971, 197942, 494855, 989710, 1880449, 3760898, 9402245, 18804490]

約数ペア:

[(1, 18804490), (2, 9402245), (5, 3760898), (10, 1880449), (19, 989710), (38, 494855), (95, 197942), (190, 98971), (361, 52090), (722, 26045), (1805, 10418), (3610, 5209)]