128761728

素因数分解:

$2^7\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 128

約数和(自身を含む): 364262400

約数和(自身を除く): 235500672

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 61, 64, 69, 92, 96, 122, 128, 138, 183, 184, 192, 239, 244, 276, 366, 368, 384, 478, 488, 552, 717, 732, 736, 956, 976, 1104, 1403, 1434, 1464, 1472, 1912, 1952, 2208, 2806, 2868, 2928, 2944, 3824, 3904, 4209, 4416, 5497, 5612, 5736, 5856, 7648, 7808, 8418, 8832, 10994, 11224, 11472, 11712, 14579, 15296, 16491, 16836, 21988, 22448, 22944, 23424, 29158, 30592, 32982, 33672, 43737, 43976, 44896, 45888, 58316, 65964, 67344, 87474, 87952, 89792, 91776, 116632, 131928, 134688, 174948, 175904, 179584, 233264, 263856, 269376, 335317, 349896, 351808, 466528, 527712, 538752, 670634, 699792, 703616, 933056, 1005951, 1055424, 1341268, 1399584, 1866112, 2011902, 2110848, 2682536, 2799168, 4023804, 5365072, 5598336, 8047608, 10730144, 16095216, 21460288, 32190432, 42920576, 64380864, 128761728]

約数ペア:

[(1, 128761728), (2, 64380864), (3, 42920576), (4, 32190432), (6, 21460288), (8, 16095216), (12, 10730144), (16, 8047608), (23, 5598336), (24, 5365072), (32, 4023804), (46, 2799168), (48, 2682536), (61, 2110848), (64, 2011902), (69, 1866112), (92, 1399584), (96, 1341268), (122, 1055424), (128, 1005951), (138, 933056), (183, 703616), (184, 699792), (192, 670634), (239, 538752), (244, 527712), (276, 466528), (366, 351808), (368, 349896), (384, 335317), (478, 269376), (488, 263856), (552, 233264), (717, 179584), (732, 175904), (736, 174948), (956, 134688), (976, 131928), (1104, 116632), (1403, 91776), (1434, 89792), (1464, 87952), (1472, 87474), (1912, 67344), (1952, 65964), (2208, 58316), (2806, 45888), (2868, 44896), (2928, 43976), (2944, 43737), (3824, 33672), (3904, 32982), (4209, 30592), (4416, 29158), (5497, 23424), (5612, 22944), (5736, 22448), (5856, 21988), (7648, 16836), (7808, 16491), (8418, 15296), (8832, 14579), (10994, 11712), (11224, 11472)]