21581485920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{6211}}^1$

素因数の和:6378

約数の個数: 288

約数和(自身を含む): 78145966080

約数和(自身を除く): 56564480160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 127, 144, 152, 160, 171, 180, 190, 228, 240, 254, 285, 288, 304, 342, 360, 380, 381, 456, 480, 508, 570, 608, 635, 684, 720, 760, 762, 855, 912, 1016, 1140, 1143, 1270, 1368, 1440, 1520, 1524, 1710, 1824, 1905, 2032, 2280, 2286, 2413, 2540, 2736, 3040, 3048, 3420, 3810, 4064, 4560, 4572, 4826, 5080, 5472, 5715, 6096, 6211, 6840, 7239, 7620, 9120, 9144, 9652, 10160, 11430, 12065, 12192, 12422, 13680, 14478, 15240, 18288, 18633, 19304, 20320, 21717, 22860, 24130, 24844, 27360, 28956, 30480, 31055, 36195, 36576, 37266, 38608, 43434, 45720, 48260, 49688, 55899, 57912, 60960, 62110, 72390, 74532, 77216, 86868, 91440, 93165, 96520, 99376, 108585, 111798, 115824, 118009, 124220, 144780, 149064, 173736, 182880, 186330, 193040, 198752, 217170, 223596, 231648, 236018, 248440, 279495, 289560, 298128, 347472, 354027, 372660, 386080, 434340, 447192, 472036, 496880, 558990, 579120, 590045, 596256, 694944, 708054, 745320, 788797, 868680, 894384, 944072, 993760, 1062081, 1117980, 1158240, 1180090, 1416108, 1490640, 1577594, 1737360, 1770135, 1788768, 1888144, 2124162, 2235960, 2360180, 2366391, 2832216, 2981280, 3155188, 3474720, 3540270, 3776288, 3943985, 4248324, 4471920, 4720360, 4732782, 5310405, 5664432, 6310376, 7080540, 7099173, 7887970, 8496648, 8943840, 9440720, 9465564, 10620810, 11328864, 11831955, 12620752, 14161080, 14198346, 14987143, 15775940, 16993296, 18881440, 18931128, 21241620, 23663910, 25241504, 28322160, 28396692, 29974286, 31551880, 33986592, 35495865, 37862256, 42483240, 44961429, 47327820, 56644320, 56793384, 59948572, 63103760, 70991730, 74935715, 75724512, 84966480, 89922858, 94655640, 113586768, 119897144, 126207520, 134884287, 141983460, 149871430, 169932960, 179845716, 189311280, 224807145, 227173536, 239794288, 269768574, 283966920, 299742860, 359691432, 378622560, 449614290, 479588576, 539537148, 567933840, 599485720, 674421435, 719382864, 899228580, 1079074296, 1135867680, 1198971440, 1348842870, 1438765728, 1798457160, 2158148592, 2397942880, 2697685740, 3596914320, 4316297184, 5395371480, 7193828640, 10790742960, 21581485920]

約数ペア:

[(1, 21581485920), (2, 10790742960), (3, 7193828640), (4, 5395371480), (5, 4316297184), (6, 3596914320), (8, 2697685740), (9, 2397942880), (10, 2158148592), (12, 1798457160), (15, 1438765728), (16, 1348842870), (18, 1198971440), (19, 1135867680), (20, 1079074296), (24, 899228580), (30, 719382864), (32, 674421435), (36, 599485720), (38, 567933840), (40, 539537148), (45, 479588576), (48, 449614290), (57, 378622560), (60, 359691432), (72, 299742860), (76, 283966920), (80, 269768574), (90, 239794288), (95, 227173536), (96, 224807145), (114, 189311280), (120, 179845716), (127, 169932960), (144, 149871430), (152, 141983460), (160, 134884287), (171, 126207520), (180, 119897144), (190, 113586768), (228, 94655640), (240, 89922858), (254, 84966480), (285, 75724512), (288, 74935715), (304, 70991730), (342, 63103760), (360, 59948572), (380, 56793384), (381, 56644320), (456, 47327820), (480, 44961429), (508, 42483240), (570, 37862256), (608, 35495865), (635, 33986592), (684, 31551880), (720, 29974286), (760, 28396692), (762, 28322160), (855, 25241504), (912, 23663910), (1016, 21241620), (1140, 18931128), (1143, 18881440), (1270, 16993296), (1368, 15775940), (1440, 14987143), (1520, 14198346), (1524, 14161080), (1710, 12620752), (1824, 11831955), (1905, 11328864), (2032, 10620810), (2280, 9465564), (2286, 9440720), (2413, 8943840), (2540, 8496648), (2736, 7887970), (3040, 7099173), (3048, 7080540), (3420, 6310376), (3810, 5664432), (4064, 5310405), (4560, 4732782), (4572, 4720360), (4826, 4471920), (5080, 4248324), (5472, 3943985), (5715, 3776288), (6096, 3540270), (6211, 3474720), (6840, 3155188), (7239, 2981280), (7620, 2832216), (9120, 2366391), (9144, 2360180), (9652, 2235960), (10160, 2124162), (11430, 1888144), (12065, 1788768), (12192, 1770135), (12422, 1737360), (13680, 1577594), (14478, 1490640), (15240, 1416108), (18288, 1180090), (18633, 1158240), (19304, 1117980), (20320, 1062081), (21717, 993760), (22860, 944072), (24130, 894384), (24844, 868680), (27360, 788797), (28956, 745320), (30480, 708054), (31055, 694944), (36195, 596256), (36576, 590045), (37266, 579120), (38608, 558990), (43434, 496880), (45720, 472036), (48260, 447192), (49688, 434340), (55899, 386080), (57912, 372660), (60960, 354027), (62110, 347472), (72390, 298128), (74532, 289560), (77216, 279495), (86868, 248440), (91440, 236018), (93165, 231648), (96520, 223596), (99376, 217170), (108585, 198752), (111798, 193040), (115824, 186330), (118009, 182880), (124220, 173736), (144780, 149064)]