1638168

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{199}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 4800000

約数和(自身を除く): 3161832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 199, 294, 343, 392, 398, 588, 597, 686, 796, 1029, 1176, 1194, 1372, 1393, 1592, 2058, 2388, 2744, 2786, 4116, 4179, 4776, 5572, 8232, 8358, 9751, 11144, 16716, 19502, 29253, 33432, 39004, 58506, 68257, 78008, 117012, 136514, 204771, 234024, 273028, 409542, 546056, 819084, 1638168]

約数ペア:

[(1, 1638168), (2, 819084), (3, 546056), (4, 409542), (6, 273028), (7, 234024), (8, 204771), (12, 136514), (14, 117012), (21, 78008), (24, 68257), (28, 58506), (42, 39004), (49, 33432), (56, 29253), (84, 19502), (98, 16716), (147, 11144), (168, 9751), (196, 8358), (199, 8232), (294, 5572), (343, 4776), (392, 4179), (398, 4116), (588, 2786), (597, 2744), (686, 2388), (796, 2058), (1029, 1592), (1176, 1393), (1194, 1372)]