2097140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 4741632

約数和(自身を除く): 2644492

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 97, 115, 188, 194, 230, 235, 388, 460, 470, 485, 940, 970, 1081, 1940, 2162, 2231, 4324, 4462, 4559, 5405, 8924, 9118, 10810, 11155, 18236, 21620, 22310, 22795, 44620, 45590, 91180, 104857, 209714, 419428, 524285, 1048570, 2097140]

約数ペア:

[(1, 2097140), (2, 1048570), (4, 524285), (5, 419428), (10, 209714), (20, 104857), (23, 91180), (46, 45590), (47, 44620), (92, 22795), (94, 22310), (97, 21620), (115, 18236), (188, 11155), (194, 10810), (230, 9118), (235, 8924), (388, 5405), (460, 4559), (470, 4462), (485, 4324), (940, 2231), (970, 2162), (1081, 1940)]