81407788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4987}}^1$

素因数の和:5062

約数の個数: 48

約数和(自身を含む): 181004544

約数和(自身を除く): 99596756

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1484, 2332, 4081, 4987, 8162, 9974, 16324, 19948, 34909, 54857, 69818, 109714, 139636, 219428, 264311, 383999, 528622, 767998, 1057244, 1535996, 1850177, 2907421, 3700354, 5814842, 7400708, 11629684, 20351947, 40703894, 81407788]

約数ペア:

[(1, 81407788), (2, 40703894), (4, 20351947), (7, 11629684), (11, 7400708), (14, 5814842), (22, 3700354), (28, 2907421), (44, 1850177), (53, 1535996), (77, 1057244), (106, 767998), (154, 528622), (212, 383999), (308, 264311), (371, 219428), (583, 139636), (742, 109714), (1166, 69818), (1484, 54857), (2332, 34909), (4081, 19948), (4987, 16324), (8162, 9974)]