256559688

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{601}}^1$

素因数の和:649

約数の個数: 216

約数和(自身を含む): 889933590

約数和(自身を除く): 633373902

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 28, 33, 36, 42, 44, 49, 56, 63, 66, 72, 77, 84, 88, 98, 99, 121, 126, 132, 147, 154, 168, 196, 198, 231, 242, 252, 264, 294, 308, 363, 392, 396, 441, 462, 484, 504, 539, 588, 601, 616, 693, 726, 792, 847, 882, 924, 968, 1078, 1089, 1176, 1202, 1386, 1452, 1617, 1694, 1764, 1803, 1848, 2156, 2178, 2404, 2541, 2772, 2904, 3234, 3388, 3528, 3606, 4207, 4312, 4356, 4808, 4851, 5082, 5409, 5544, 5929, 6468, 6611, 6776, 7212, 7623, 8414, 8712, 9702, 10164, 10818, 11858, 12621, 12936, 13222, 14424, 15246, 16828, 17787, 19404, 19833, 20328, 21636, 23716, 25242, 26444, 29449, 30492, 33656, 35574, 37863, 38808, 39666, 43272, 46277, 47432, 50484, 52888, 53361, 58898, 59499, 60984, 71148, 72721, 75726, 79332, 88347, 92554, 100968, 106722, 117796, 118998, 138831, 142296, 145442, 151452, 158664, 176694, 185108, 213444, 218163, 235592, 237996, 265041, 277662, 290884, 302904, 323939, 353388, 370216, 416493, 426888, 436326, 475992, 509047, 530082, 555324, 581768, 647878, 654489, 706776, 832986, 872652, 971817, 1018094, 1060164, 1110648, 1295756, 1308978, 1527141, 1665972, 1745304, 1943634, 2036188, 2120328, 2591512, 2617956, 2915451, 3054282, 3331944, 3563329, 3887268, 4072376, 4581423, 5235912, 5830902, 6108564, 7126658, 7774536, 9162846, 10689987, 11661804, 12217128, 14253316, 18325692, 21379974, 23323608, 28506632, 32069961, 36651384, 42759948, 64139922, 85519896, 128279844, 256559688]

約数ペア:

[(1, 256559688), (2, 128279844), (3, 85519896), (4, 64139922), (6, 42759948), (7, 36651384), (8, 32069961), (9, 28506632), (11, 23323608), (12, 21379974), (14, 18325692), (18, 14253316), (21, 12217128), (22, 11661804), (24, 10689987), (28, 9162846), (33, 7774536), (36, 7126658), (42, 6108564), (44, 5830902), (49, 5235912), (56, 4581423), (63, 4072376), (66, 3887268), (72, 3563329), (77, 3331944), (84, 3054282), (88, 2915451), (98, 2617956), (99, 2591512), (121, 2120328), (126, 2036188), (132, 1943634), (147, 1745304), (154, 1665972), (168, 1527141), (196, 1308978), (198, 1295756), (231, 1110648), (242, 1060164), (252, 1018094), (264, 971817), (294, 872652), (308, 832986), (363, 706776), (392, 654489), (396, 647878), (441, 581768), (462, 555324), (484, 530082), (504, 509047), (539, 475992), (588, 436326), (601, 426888), (616, 416493), (693, 370216), (726, 353388), (792, 323939), (847, 302904), (882, 290884), (924, 277662), (968, 265041), (1078, 237996), (1089, 235592), (1176, 218163), (1202, 213444), (1386, 185108), (1452, 176694), (1617, 158664), (1694, 151452), (1764, 145442), (1803, 142296), (1848, 138831), (2156, 118998), (2178, 117796), (2404, 106722), (2541, 100968), (2772, 92554), (2904, 88347), (3234, 79332), (3388, 75726), (3528, 72721), (3606, 71148), (4207, 60984), (4312, 59499), (4356, 58898), (4808, 53361), (4851, 52888), (5082, 50484), (5409, 47432), (5544, 46277), (5929, 43272), (6468, 39666), (6611, 38808), (6776, 37863), (7212, 35574), (7623, 33656), (8414, 30492), (8712, 29449), (9702, 26444), (10164, 25242), (10818, 23716), (11858, 21636), (12621, 20328), (12936, 19833), (13222, 19404), (14424, 17787), (15246, 16828)]