18357625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 27406080

約数和(自身を除く): 9048455

約数列:

[1, 5, 11, 13, 25, 55, 65, 79, 125, 143, 169, 275, 325, 395, 715, 845, 869, 1027, 1375, 1625, 1859, 1975, 3575, 4225, 4345, 5135, 9295, 9875, 11297, 13351, 17875, 21125, 21725, 25675, 46475, 56485, 66755, 108625, 128375, 146861, 232375, 282425, 333775, 734305, 1412125, 1668875, 3671525, 18357625]

約数ペア:

[(1, 18357625), (5, 3671525), (11, 1668875), (13, 1412125), (25, 734305), (55, 333775), (65, 282425), (79, 232375), (125, 146861), (143, 128375), (169, 108625), (275, 66755), (325, 56485), (395, 46475), (715, 25675), (845, 21725), (869, 21125), (1027, 17875), (1375, 13351), (1625, 11297), (1859, 9875), (1975, 9295), (3575, 5135), (4225, 4345)]