20640350640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{9743}}^1$

素因数の和:9876

約数の個数: 320

約数和(自身を含む): 79570907136

約数和(自身を除く): 58930556496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 97, 104, 105, 112, 120, 130, 140, 156, 168, 182, 194, 195, 208, 210, 240, 260, 273, 280, 291, 312, 336, 364, 388, 390, 420, 455, 485, 520, 546, 560, 582, 624, 679, 728, 776, 780, 840, 910, 970, 1040, 1092, 1164, 1261, 1358, 1365, 1455, 1456, 1552, 1560, 1680, 1820, 1940, 2037, 2184, 2328, 2522, 2716, 2730, 2910, 3120, 3395, 3640, 3783, 3880, 4074, 4368, 4656, 5044, 5432, 5460, 5820, 6305, 6790, 7280, 7566, 7760, 8148, 8827, 9743, 10088, 10185, 10864, 10920, 11640, 12610, 13580, 15132, 16296, 17654, 18915, 19486, 20176, 20370, 21840, 23280, 25220, 26481, 27160, 29229, 30264, 32592, 35308, 37830, 38972, 40740, 44135, 48715, 50440, 52962, 54320, 58458, 60528, 68201, 70616, 75660, 77944, 81480, 88270, 97430, 100880, 105924, 116916, 126659, 132405, 136402, 141232, 146145, 151320, 155888, 162960, 176540, 194860, 204603, 211848, 233832, 253318, 264810, 272804, 292290, 302640, 341005, 353080, 379977, 389720, 409206, 423696, 467664, 506636, 529620, 545608, 584580, 633295, 682010, 706160, 759954, 779440, 818412, 886613, 945071, 1013272, 1023015, 1059240, 1091216, 1169160, 1266590, 1364020, 1519908, 1636824, 1773226, 1890142, 1899885, 2026544, 2046030, 2118480, 2338320, 2533180, 2659839, 2728040, 2835213, 3039816, 3273648, 3546452, 3780284, 3799770, 4092060, 4433065, 4725355, 5066360, 5319678, 5456080, 5670426, 6079632, 6615497, 7092904, 7560568, 7599540, 8184120, 8866130, 9450710, 10132720, 10639356, 11340852, 12285923, 13230994, 13299195, 14176065, 14185808, 15121136, 15199080, 16368240, 17732260, 18901420, 19846491, 21278712, 22681704, 24571846, 26461988, 26598390, 28352130, 30398160, 33077485, 35464520, 36857769, 37802840, 39692982, 42557424, 45363408, 49143692, 52923976, 53196780, 56704260, 61429615, 66154970, 70929040, 73715538, 75605680, 79385964, 86001461, 98287384, 99232455, 105847952, 106393560, 113408520, 122859230, 132309940, 147431076, 158771928, 172002922, 184288845, 196574768, 198464910, 212787120, 226817040, 245718460, 258004383, 264619880, 294862152, 317543856, 344005844, 368577690, 396929820, 430007305, 491436920, 516008766, 529239760, 589724304, 688011688, 737155380, 793859640, 860014610, 982873840, 1032017532, 1290021915, 1376023376, 1474310760, 1587719280, 1720029220, 2064035064, 2580043830, 2948621520, 3440058440, 4128070128, 5160087660, 6880116880, 10320175320, 20640350640]

約数ペア:

[(1, 20640350640), (2, 10320175320), (3, 6880116880), (4, 5160087660), (5, 4128070128), (6, 3440058440), (7, 2948621520), (8, 2580043830), (10, 2064035064), (12, 1720029220), (13, 1587719280), (14, 1474310760), (15, 1376023376), (16, 1290021915), (20, 1032017532), (21, 982873840), (24, 860014610), (26, 793859640), (28, 737155380), (30, 688011688), (35, 589724304), (39, 529239760), (40, 516008766), (42, 491436920), (48, 430007305), (52, 396929820), (56, 368577690), (60, 344005844), (65, 317543856), (70, 294862152), (78, 264619880), (80, 258004383), (84, 245718460), (91, 226817040), (97, 212787120), (104, 198464910), (105, 196574768), (112, 184288845), (120, 172002922), (130, 158771928), (140, 147431076), (156, 132309940), (168, 122859230), (182, 113408520), (194, 106393560), (195, 105847952), (208, 99232455), (210, 98287384), (240, 86001461), (260, 79385964), (273, 75605680), (280, 73715538), (291, 70929040), (312, 66154970), (336, 61429615), (364, 56704260), (388, 53196780), (390, 52923976), (420, 49143692), (455, 45363408), (485, 42557424), (520, 39692982), (546, 37802840), (560, 36857769), (582, 35464520), (624, 33077485), (679, 30398160), (728, 28352130), (776, 26598390), (780, 26461988), (840, 24571846), (910, 22681704), (970, 21278712), (1040, 19846491), (1092, 18901420), (1164, 17732260), (1261, 16368240), (1358, 15199080), (1365, 15121136), (1455, 14185808), (1456, 14176065), (1552, 13299195), (1560, 13230994), (1680, 12285923), (1820, 11340852), (1940, 10639356), (2037, 10132720), (2184, 9450710), (2328, 8866130), (2522, 8184120), (2716, 7599540), (2730, 7560568), (2910, 7092904), (3120, 6615497), (3395, 6079632), (3640, 5670426), (3783, 5456080), (3880, 5319678), (4074, 5066360), (4368, 4725355), (4656, 4433065), (5044, 4092060), (5432, 3799770), (5460, 3780284), (5820, 3546452), (6305, 3273648), (6790, 3039816), (7280, 2835213), (7566, 2728040), (7760, 2659839), (8148, 2533180), (8827, 2338320), (9743, 2118480), (10088, 2046030), (10185, 2026544), (10864, 1899885), (10920, 1890142), (11640, 1773226), (12610, 1636824), (13580, 1519908), (15132, 1364020), (16296, 1266590), (17654, 1169160), (18915, 1091216), (19486, 1059240), (20176, 1023015), (20370, 1013272), (21840, 945071), (23280, 886613), (25220, 818412), (26481, 779440), (27160, 759954), (29229, 706160), (30264, 682010), (32592, 633295), (35308, 584580), (37830, 545608), (38972, 529620), (40740, 506636), (44135, 467664), (48715, 423696), (50440, 409206), (52962, 389720), (54320, 379977), (58458, 353080), (60528, 341005), (68201, 302640), (70616, 292290), (75660, 272804), (77944, 264810), (81480, 253318), (88270, 233832), (97430, 211848), (100880, 204603), (105924, 194860), (116916, 176540), (126659, 162960), (132405, 155888), (136402, 151320), (141232, 146145)]