2581428

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 6451200

約数和(自身を除く): 3869772

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 47, 69, 92, 94, 138, 141, 188, 199, 276, 282, 398, 564, 597, 796, 1081, 1194, 2162, 2388, 3243, 4324, 4577, 6486, 9154, 9353, 12972, 13731, 18308, 18706, 27462, 28059, 37412, 54924, 56118, 112236, 215119, 430238, 645357, 860476, 1290714, 2581428]

約数ペア:

[(1, 2581428), (2, 1290714), (3, 860476), (4, 645357), (6, 430238), (12, 215119), (23, 112236), (46, 56118), (47, 54924), (69, 37412), (92, 28059), (94, 27462), (138, 18706), (141, 18308), (188, 13731), (199, 12972), (276, 9353), (282, 9154), (398, 6486), (564, 4577), (597, 4324), (796, 3243), (1081, 2388), (1194, 2162)]