18003925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1307}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 24328800

約数和(自身を除く): 6324875

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1307, 2755, 6535, 13775, 24833, 32675, 37903, 124165, 189515, 620825, 720157, 947575, 3600785, 18003925]

約数ペア:

[(1, 18003925), (5, 3600785), (19, 947575), (25, 720157), (29, 620825), (95, 189515), (145, 124165), (475, 37903), (551, 32675), (725, 24833), (1307, 13775), (2755, 6535)]