18887625

素因数分解:

$3^2\times 5^3\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 34589568

約数和(自身を除く): 15701943

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 125, 163, 225, 309, 375, 489, 515, 815, 927, 1125, 1467, 1545, 2445, 2575, 4075, 4635, 7335, 7725, 12225, 12875, 16789, 20375, 23175, 36675, 38625, 50367, 61125, 83945, 115875, 151101, 183375, 251835, 419725, 755505, 1259175, 2098625, 3777525, 6295875, 18887625]

約数ペア:

[(1, 18887625), (3, 6295875), (5, 3777525), (9, 2098625), (15, 1259175), (25, 755505), (45, 419725), (75, 251835), (103, 183375), (125, 151101), (163, 115875), (225, 83945), (309, 61125), (375, 50367), (489, 38625), (515, 36675), (815, 23175), (927, 20375), (1125, 16789), (1467, 12875), (1545, 12225), (2445, 7725), (2575, 7335), (4075, 4635)]