278057725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{5081}}^1$

素因数の和:5301

約数の個数: 24

約数和(自身を含む): 378100800

約数和(自身を除く): 100043075

約数列:

[1, 5, 11, 25, 55, 199, 275, 995, 2189, 4975, 5081, 10945, 25405, 54725, 55891, 127025, 279455, 1011119, 1397275, 5055595, 11122309, 25277975, 55611545, 278057725]

約数ペア:

[(1, 278057725), (5, 55611545), (11, 25277975), (25, 11122309), (55, 5055595), (199, 1397275), (275, 1011119), (995, 279455), (2189, 127025), (4975, 55891), (5081, 54725), (10945, 25405)]