28379484

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 87895808

約数和(自身を除く): 59516324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 43, 54, 63, 81, 84, 86, 97, 108, 126, 129, 162, 172, 189, 194, 243, 252, 258, 291, 301, 324, 378, 387, 388, 486, 516, 567, 582, 602, 679, 756, 774, 873, 903, 972, 1134, 1161, 1164, 1204, 1358, 1548, 1701, 1746, 1806, 2037, 2268, 2322, 2619, 2709, 2716, 3402, 3483, 3492, 3612, 4074, 4171, 4644, 5238, 5418, 6111, 6804, 6966, 7857, 8127, 8148, 8342, 10449, 10476, 10836, 12222, 12513, 13932, 15714, 16254, 16684, 18333, 20898, 23571, 24381, 24444, 25026, 29197, 31428, 32508, 36666, 37539, 41796, 47142, 48762, 50052, 54999, 58394, 73143, 73332, 75078, 87591, 94284, 97524, 109998, 112617, 116788, 146286, 150156, 164997, 175182, 219996, 225234, 262773, 292572, 329994, 337851, 350364, 450468, 525546, 659988, 675702, 788319, 1013553, 1051092, 1351404, 1576638, 2027106, 2364957, 3153276, 4054212, 4729914, 7094871, 9459828, 14189742, 28379484]

約数ペア:

[(1, 28379484), (2, 14189742), (3, 9459828), (4, 7094871), (6, 4729914), (7, 4054212), (9, 3153276), (12, 2364957), (14, 2027106), (18, 1576638), (21, 1351404), (27, 1051092), (28, 1013553), (36, 788319), (42, 675702), (43, 659988), (54, 525546), (63, 450468), (81, 350364), (84, 337851), (86, 329994), (97, 292572), (108, 262773), (126, 225234), (129, 219996), (162, 175182), (172, 164997), (189, 150156), (194, 146286), (243, 116788), (252, 112617), (258, 109998), (291, 97524), (301, 94284), (324, 87591), (378, 75078), (387, 73332), (388, 73143), (486, 58394), (516, 54999), (567, 50052), (582, 48762), (602, 47142), (679, 41796), (756, 37539), (774, 36666), (873, 32508), (903, 31428), (972, 29197), (1134, 25026), (1161, 24444), (1164, 24381), (1204, 23571), (1358, 20898), (1548, 18333), (1701, 16684), (1746, 16254), (1806, 15714), (2037, 13932), (2268, 12513), (2322, 12222), (2619, 10836), (2709, 10476), (2716, 10449), (3402, 8342), (3483, 8148), (3492, 8127), (3612, 7857), (4074, 6966), (4171, 6804), (4644, 6111), (5238, 5418)]