261334528

素因数分解:

$2^9\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 160

約数和(自身を含む): 659957760

約数和(自身を除く): 398623232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 71, 79, 91, 104, 112, 128, 142, 158, 182, 208, 224, 256, 284, 316, 364, 416, 448, 497, 512, 553, 568, 632, 728, 832, 896, 923, 994, 1027, 1106, 1136, 1264, 1456, 1664, 1792, 1846, 1988, 2054, 2212, 2272, 2528, 2912, 3328, 3584, 3692, 3976, 4108, 4424, 4544, 5056, 5609, 5824, 6461, 6656, 7189, 7384, 7952, 8216, 8848, 9088, 10112, 11218, 11648, 12922, 14378, 14768, 15904, 16432, 17696, 18176, 20224, 22436, 23296, 25844, 28756, 29536, 31808, 32864, 35392, 36352, 39263, 40448, 44872, 46592, 51688, 57512, 59072, 63616, 65728, 70784, 72917, 78526, 89744, 103376, 115024, 118144, 127232, 131456, 141568, 145834, 157052, 179488, 206752, 230048, 236288, 254464, 262912, 283136, 291668, 314104, 358976, 413504, 460096, 472576, 510419, 525824, 583336, 628208, 717952, 827008, 920192, 1020838, 1166672, 1256416, 1435904, 1654016, 1840384, 2041676, 2333344, 2512832, 2871808, 3308032, 3680768, 4083352, 4666688, 5025664, 8166704, 9333376, 10051328, 16333408, 18666752, 20102656, 32666816, 37333504, 65333632, 130667264, 261334528]

約数ペア:

[(1, 261334528), (2, 130667264), (4, 65333632), (7, 37333504), (8, 32666816), (13, 20102656), (14, 18666752), (16, 16333408), (26, 10051328), (28, 9333376), (32, 8166704), (52, 5025664), (56, 4666688), (64, 4083352), (71, 3680768), (79, 3308032), (91, 2871808), (104, 2512832), (112, 2333344), (128, 2041676), (142, 1840384), (158, 1654016), (182, 1435904), (208, 1256416), (224, 1166672), (256, 1020838), (284, 920192), (316, 827008), (364, 717952), (416, 628208), (448, 583336), (497, 525824), (512, 510419), (553, 472576), (568, 460096), (632, 413504), (728, 358976), (832, 314104), (896, 291668), (923, 283136), (994, 262912), (1027, 254464), (1106, 236288), (1136, 230048), (1264, 206752), (1456, 179488), (1664, 157052), (1792, 145834), (1846, 141568), (1988, 131456), (2054, 127232), (2212, 118144), (2272, 115024), (2528, 103376), (2912, 89744), (3328, 78526), (3584, 72917), (3692, 70784), (3976, 65728), (4108, 63616), (4424, 59072), (4544, 57512), (5056, 51688), (5609, 46592), (5824, 44872), (6461, 40448), (6656, 39263), (7189, 36352), (7384, 35392), (7952, 32864), (8216, 31808), (8848, 29536), (9088, 28756), (10112, 25844), (11218, 23296), (11648, 22436), (12922, 20224), (14378, 18176), (14768, 17696), (15904, 16432)]