18475925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{4373}}^1$

素因数の和:4409

約数の個数: 18

約数和(自身を含む): 24813702

約数和(自身を除く): 6337777

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 4373, 21865, 56849, 109325, 284245, 739037, 1421225, 3695185, 18475925]

約数ペア:

[(1, 18475925), (5, 3695185), (13, 1421225), (25, 739037), (65, 284245), (169, 109325), (325, 56849), (845, 21865), (4225, 4373)]