251792128

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2073

約数の個数: 72

約数和(自身を含む): 582785280

約数和(自身を除く): 330993152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 256, 284, 448, 497, 568, 896, 994, 1136, 1792, 1979, 1988, 2272, 3958, 3976, 4544, 7916, 7952, 9088, 13853, 15832, 15904, 18176, 27706, 31664, 31808, 55412, 63328, 63616, 110824, 126656, 127232, 140509, 221648, 253312, 281018, 443296, 506624, 562036, 886592, 983563, 1124072, 1773184, 1967126, 2248144, 3546368, 3934252, 4496288, 7868504, 8992576, 15737008, 17985152, 31474016, 35970304, 62948032, 125896064, 251792128]

約数ペア:

[(1, 251792128), (2, 125896064), (4, 62948032), (7, 35970304), (8, 31474016), (14, 17985152), (16, 15737008), (28, 8992576), (32, 7868504), (56, 4496288), (64, 3934252), (71, 3546368), (112, 2248144), (128, 1967126), (142, 1773184), (224, 1124072), (256, 983563), (284, 886592), (448, 562036), (497, 506624), (568, 443296), (896, 281018), (994, 253312), (1136, 221648), (1792, 140509), (1979, 127232), (1988, 126656), (2272, 110824), (3958, 63616), (3976, 63328), (4544, 55412), (7916, 31808), (7952, 31664), (9088, 27706), (13853, 18176), (15832, 15904)]