256929120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:458

約数の個数: 288

約数和(自身を含む): 1018967040

約数和(自身を除く): 762037920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 71, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 142, 144, 160, 168, 180, 210, 213, 224, 240, 252, 280, 284, 288, 315, 336, 355, 359, 360, 420, 426, 480, 497, 504, 560, 568, 630, 639, 672, 710, 718, 720, 840, 852, 994, 1008, 1065, 1077, 1120, 1136, 1260, 1278, 1420, 1436, 1440, 1491, 1680, 1704, 1795, 1988, 2016, 2130, 2154, 2272, 2485, 2513, 2520, 2556, 2840, 2872, 2982, 3195, 3231, 3360, 3408, 3590, 3976, 4260, 4308, 4473, 4970, 5026, 5040, 5112, 5385, 5680, 5744, 5964, 6390, 6462, 6816, 7180, 7455, 7539, 7952, 8520, 8616, 8946, 9940, 10052, 10080, 10224, 10770, 11360, 11488, 11928, 12565, 12780, 12924, 14360, 14910, 15078, 15904, 16155, 17040, 17232, 17892, 19880, 20104, 20448, 21540, 22365, 22617, 23856, 25130, 25489, 25560, 25848, 28720, 29820, 30156, 32310, 34080, 34464, 35784, 37695, 39760, 40208, 43080, 44730, 45234, 47712, 50260, 50978, 51120, 51696, 57440, 59640, 60312, 64620, 71568, 75390, 76467, 79520, 80416, 86160, 89460, 90468, 100520, 101956, 102240, 103392, 113085, 119280, 120624, 127445, 129240, 143136, 150780, 152934, 172320, 178423, 178920, 180936, 201040, 203912, 226170, 229401, 238560, 241248, 254890, 258480, 301560, 305868, 356846, 357840, 361872, 382335, 402080, 407824, 452340, 458802, 509780, 516960, 535269, 603120, 611736, 713692, 715680, 723744, 764670, 815648, 892115, 904680, 917604, 1019560, 1070538, 1147005, 1206240, 1223472, 1427384, 1529340, 1605807, 1784230, 1809360, 1835208, 2039120, 2141076, 2294010, 2446944, 2676345, 2854768, 3058680, 3211614, 3568460, 3618720, 3670416, 4078240, 4282152, 4588020, 5352690, 5709536, 6117360, 6423228, 7136920, 7340832, 8029035, 8564304, 9176040, 10705380, 12234720, 12846456, 14273840, 16058070, 17128608, 18352080, 21410760, 25692912, 28547680, 32116140, 36704160, 42821520, 51385824, 64232280, 85643040, 128464560, 256929120]

約数ペア:

[(1, 256929120), (2, 128464560), (3, 85643040), (4, 64232280), (5, 51385824), (6, 42821520), (7, 36704160), (8, 32116140), (9, 28547680), (10, 25692912), (12, 21410760), (14, 18352080), (15, 17128608), (16, 16058070), (18, 14273840), (20, 12846456), (21, 12234720), (24, 10705380), (28, 9176040), (30, 8564304), (32, 8029035), (35, 7340832), (36, 7136920), (40, 6423228), (42, 6117360), (45, 5709536), (48, 5352690), (56, 4588020), (60, 4282152), (63, 4078240), (70, 3670416), (71, 3618720), (72, 3568460), (80, 3211614), (84, 3058680), (90, 2854768), (96, 2676345), (105, 2446944), (112, 2294010), (120, 2141076), (126, 2039120), (140, 1835208), (142, 1809360), (144, 1784230), (160, 1605807), (168, 1529340), (180, 1427384), (210, 1223472), (213, 1206240), (224, 1147005), (240, 1070538), (252, 1019560), (280, 917604), (284, 904680), (288, 892115), (315, 815648), (336, 764670), (355, 723744), (359, 715680), (360, 713692), (420, 611736), (426, 603120), (480, 535269), (497, 516960), (504, 509780), (560, 458802), (568, 452340), (630, 407824), (639, 402080), (672, 382335), (710, 361872), (718, 357840), (720, 356846), (840, 305868), (852, 301560), (994, 258480), (1008, 254890), (1065, 241248), (1077, 238560), (1120, 229401), (1136, 226170), (1260, 203912), (1278, 201040), (1420, 180936), (1436, 178920), (1440, 178423), (1491, 172320), (1680, 152934), (1704, 150780), (1795, 143136), (1988, 129240), (2016, 127445), (2130, 120624), (2154, 119280), (2272, 113085), (2485, 103392), (2513, 102240), (2520, 101956), (2556, 100520), (2840, 90468), (2872, 89460), (2982, 86160), (3195, 80416), (3231, 79520), (3360, 76467), (3408, 75390), (3590, 71568), (3976, 64620), (4260, 60312), (4308, 59640), (4473, 57440), (4970, 51696), (5026, 51120), (5040, 50978), (5112, 50260), (5385, 47712), (5680, 45234), (5744, 44730), (5964, 43080), (6390, 40208), (6462, 39760), (6816, 37695), (7180, 35784), (7455, 34464), (7539, 34080), (7952, 32310), (8520, 30156), (8616, 29820), (8946, 28720), (9940, 25848), (10052, 25560), (10080, 25489), (10224, 25130), (10770, 23856), (11360, 22617), (11488, 22365), (11928, 21540), (12565, 20448), (12780, 20104), (12924, 19880), (14360, 17892), (14910, 17232), (15078, 17040), (15904, 16155)]