256767420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:141

約数の個数: 384

約数和(自身を含む): 960970752

約数和(自身を除く): 704203332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 31, 35, 37, 39, 41, 42, 52, 60, 62, 65, 70, 74, 78, 82, 84, 91, 93, 105, 111, 123, 124, 130, 140, 148, 155, 156, 164, 182, 185, 186, 195, 205, 210, 217, 222, 246, 259, 260, 273, 287, 310, 364, 370, 372, 390, 403, 410, 420, 434, 444, 455, 465, 481, 492, 518, 533, 546, 555, 574, 615, 620, 651, 740, 777, 780, 806, 820, 861, 868, 910, 930, 962, 1036, 1066, 1085, 1092, 1110, 1147, 1148, 1209, 1230, 1271, 1295, 1302, 1365, 1435, 1443, 1517, 1554, 1599, 1612, 1722, 1820, 1860, 1924, 2015, 2132, 2170, 2220, 2294, 2405, 2418, 2460, 2542, 2590, 2604, 2665, 2730, 2821, 2870, 2886, 3034, 3108, 3198, 3255, 3367, 3441, 3444, 3731, 3813, 3885, 4030, 4305, 4340, 4551, 4588, 4810, 4836, 5084, 5180, 5330, 5460, 5642, 5735, 5740, 5772, 6045, 6068, 6355, 6396, 6510, 6734, 6882, 7215, 7462, 7585, 7626, 7770, 7995, 8029, 8060, 8463, 8610, 8897, 9102, 9620, 10101, 10619, 10660, 11193, 11284, 11470, 12090, 12710, 13020, 13468, 13764, 14105, 14430, 14911, 14924, 15170, 15252, 15540, 15990, 16058, 16523, 16835, 16926, 17205, 17220, 17794, 18204, 18655, 19065, 19721, 20202, 21238, 22386, 22755, 22940, 24087, 24180, 25420, 26691, 28210, 28860, 29822, 30340, 31857, 31980, 32116, 33046, 33670, 33852, 34410, 35588, 37310, 38130, 39442, 40145, 40404, 42315, 42476, 44485, 44733, 44772, 45510, 47027, 48174, 49569, 50505, 53095, 53382, 55965, 56420, 59163, 59644, 63714, 66092, 67340, 68820, 74555, 74620, 76260, 78884, 80290, 82615, 84630, 88970, 89466, 91020, 94054, 96348, 98605, 99138, 101010, 104377, 106190, 106764, 111930, 115661, 118326, 120435, 127428, 133455, 138047, 141081, 149110, 159285, 160580, 165230, 169260, 177940, 178932, 188108, 197210, 198276, 202020, 208754, 212380, 223665, 223860, 231322, 235135, 236652, 240870, 247845, 266910, 276094, 282162, 295815, 298220, 313131, 318570, 329189, 330460, 346983, 394420, 414141, 417508, 447330, 462644, 470270, 481740, 495690, 521885, 533820, 552188, 564324, 578305, 591630, 611351, 626262, 637140, 658378, 690235, 693966, 705405, 828282, 894660, 940540, 987567, 991380, 1043770, 1156610, 1183260, 1222702, 1252524, 1316756, 1380470, 1387932, 1410810, 1565655, 1645945, 1656564, 1734915, 1834053, 1975134, 2070705, 2087540, 2313220, 2445404, 2760940, 2821620, 3056755, 3131310, 3291890, 3469830, 3668106, 3950268, 4141410, 4279457, 4937835, 6113510, 6262620, 6583780, 6939660, 7336212, 8282820, 8558914, 9170265, 9875670, 12227020, 12838371, 17117828, 18340530, 19751340, 21397285, 25676742, 36681060, 42794570, 51353484, 64191855, 85589140, 128383710, 256767420]

約数ペア:

[(1, 256767420), (2, 128383710), (3, 85589140), (4, 64191855), (5, 51353484), (6, 42794570), (7, 36681060), (10, 25676742), (12, 21397285), (13, 19751340), (14, 18340530), (15, 17117828), (20, 12838371), (21, 12227020), (26, 9875670), (28, 9170265), (30, 8558914), (31, 8282820), (35, 7336212), (37, 6939660), (39, 6583780), (41, 6262620), (42, 6113510), (52, 4937835), (60, 4279457), (62, 4141410), (65, 3950268), (70, 3668106), (74, 3469830), (78, 3291890), (82, 3131310), (84, 3056755), (91, 2821620), (93, 2760940), (105, 2445404), (111, 2313220), (123, 2087540), (124, 2070705), (130, 1975134), (140, 1834053), (148, 1734915), (155, 1656564), (156, 1645945), (164, 1565655), (182, 1410810), (185, 1387932), (186, 1380470), (195, 1316756), (205, 1252524), (210, 1222702), (217, 1183260), (222, 1156610), (246, 1043770), (259, 991380), (260, 987567), (273, 940540), (287, 894660), (310, 828282), (364, 705405), (370, 693966), (372, 690235), (390, 658378), (403, 637140), (410, 626262), (420, 611351), (434, 591630), (444, 578305), (455, 564324), (465, 552188), (481, 533820), (492, 521885), (518, 495690), (533, 481740), (546, 470270), (555, 462644), (574, 447330), (615, 417508), (620, 414141), (651, 394420), (740, 346983), (777, 330460), (780, 329189), (806, 318570), (820, 313131), (861, 298220), (868, 295815), (910, 282162), (930, 276094), (962, 266910), (1036, 247845), (1066, 240870), (1085, 236652), (1092, 235135), (1110, 231322), (1147, 223860), (1148, 223665), (1209, 212380), (1230, 208754), (1271, 202020), (1295, 198276), (1302, 197210), (1365, 188108), (1435, 178932), (1443, 177940), (1517, 169260), (1554, 165230), (1599, 160580), (1612, 159285), (1722, 149110), (1820, 141081), (1860, 138047), (1924, 133455), (2015, 127428), (2132, 120435), (2170, 118326), (2220, 115661), (2294, 111930), (2405, 106764), (2418, 106190), (2460, 104377), (2542, 101010), (2590, 99138), (2604, 98605), (2665, 96348), (2730, 94054), (2821, 91020), (2870, 89466), (2886, 88970), (3034, 84630), (3108, 82615), (3198, 80290), (3255, 78884), (3367, 76260), (3441, 74620), (3444, 74555), (3731, 68820), (3813, 67340), (3885, 66092), (4030, 63714), (4305, 59644), (4340, 59163), (4551, 56420), (4588, 55965), (4810, 53382), (4836, 53095), (5084, 50505), (5180, 49569), (5330, 48174), (5460, 47027), (5642, 45510), (5735, 44772), (5740, 44733), (5772, 44485), (6045, 42476), (6068, 42315), (6355, 40404), (6396, 40145), (6510, 39442), (6734, 38130), (6882, 37310), (7215, 35588), (7462, 34410), (7585, 33852), (7626, 33670), (7770, 33046), (7995, 32116), (8029, 31980), (8060, 31857), (8463, 30340), (8610, 29822), (8897, 28860), (9102, 28210), (9620, 26691), (10101, 25420), (10619, 24180), (10660, 24087), (11193, 22940), (11284, 22755), (11470, 22386), (12090, 21238), (12710, 20202), (13020, 19721), (13468, 19065), (13764, 18655), (14105, 18204), (14430, 17794), (14911, 17220), (14924, 17205), (15170, 16926), (15252, 16835), (15540, 16523), (15990, 16058)]