20171440355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{111781}}^1$

素因数の和:112007

約数の個数: 32

約数和(自身を含む): 28104677568

約数和(自身を除く): 7933237213

約数列:

[1, 5, 11, 17, 55, 85, 187, 193, 935, 965, 2123, 3281, 10615, 16405, 36091, 111781, 180455, 558905, 1229591, 1900277, 6147955, 9501385, 20903047, 21573733, 104515235, 107868665, 237311063, 366753461, 1186555315, 1833767305, 4034288071, 20171440355]

約数ペア:

[(1, 20171440355), (5, 4034288071), (11, 1833767305), (17, 1186555315), (55, 366753461), (85, 237311063), (187, 107868665), (193, 104515235), (935, 21573733), (965, 20903047), (2123, 9501385), (3281, 6147955), (10615, 1900277), (16405, 1229591), (36091, 558905), (111781, 180455)]