20720378880

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4051}}^1$

素因数の和:4122

約数の個数: 352

約数和(自身を含む): 75645329280

約数和(自身を除く): 54924950400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 72, 74, 80, 90, 96, 108, 111, 120, 128, 135, 144, 148, 160, 180, 185, 192, 216, 222, 240, 256, 270, 288, 296, 320, 333, 360, 370, 384, 432, 444, 480, 512, 540, 555, 576, 592, 640, 666, 720, 740, 768, 864, 888, 960, 999, 1024, 1080, 1110, 1152, 1184, 1280, 1332, 1440, 1480, 1536, 1665, 1728, 1776, 1920, 1998, 2160, 2220, 2304, 2368, 2560, 2664, 2880, 2960, 3072, 3330, 3456, 3552, 3840, 3996, 4051, 4320, 4440, 4608, 4736, 4995, 5120, 5328, 5760, 5920, 6660, 6912, 7104, 7680, 7992, 8102, 8640, 8880, 9216, 9472, 9990, 10656, 11520, 11840, 12153, 13320, 13824, 14208, 15360, 15984, 16204, 17280, 17760, 18944, 19980, 20255, 21312, 23040, 23680, 24306, 26640, 27648, 28416, 31968, 32408, 34560, 35520, 36459, 37888, 39960, 40510, 42624, 46080, 47360, 48612, 53280, 56832, 60765, 63936, 64816, 69120, 71040, 72918, 79920, 81020, 85248, 94720, 97224, 106560, 109377, 113664, 121530, 127872, 129632, 138240, 142080, 145836, 149887, 159840, 162040, 170496, 182295, 189440, 194448, 213120, 218754, 243060, 255744, 259264, 284160, 291672, 299774, 319680, 324080, 340992, 364590, 388896, 426240, 437508, 449661, 486120, 511488, 518528, 546885, 568320, 583344, 599548, 639360, 648160, 729180, 749435, 777792, 852480, 875016, 899322, 972240, 1022976, 1037056, 1093770, 1166688, 1199096, 1278720, 1296320, 1348983, 1458360, 1498870, 1555584, 1704960, 1750032, 1798644, 1944480, 2074112, 2187540, 2248305, 2333376, 2398192, 2557440, 2592640, 2697966, 2916720, 2997740, 3111168, 3500064, 3597288, 3888960, 4046949, 4148224, 4375080, 4496610, 4666752, 4796384, 5114880, 5185280, 5395932, 5833440, 5995480, 6222336, 6744915, 7000128, 7194576, 7777920, 8093898, 8750160, 8993220, 9333504, 9592768, 10370560, 10791864, 11666880, 11990960, 12444672, 13489830, 14000256, 14389152, 15555840, 16187796, 17500320, 17986440, 18667008, 19185536, 20234745, 20741120, 21583728, 23333760, 23981920, 26979660, 28000512, 28778304, 31111680, 32375592, 35000640, 35972880, 37334016, 38371072, 40469490, 43167456, 46667520, 47963840, 53959320, 56001024, 57556608, 62223360, 64751184, 70001280, 71945760, 76742144, 80938980, 86334912, 93335040, 95927680, 107918640, 112002048, 115113216, 129502368, 140002560, 143891520, 153484288, 161877960, 172669824, 186670080, 191855360, 215837280, 230226432, 259004736, 280005120, 287783040, 323755920, 345339648, 383710720, 431674560, 460452864, 518009472, 560010240, 575566080, 647511840, 690679296, 767421440, 863349120, 1036018944, 1151132160, 1295023680, 1381358592, 1726698240, 2072037888, 2302264320, 2590047360, 3453396480, 4144075776, 5180094720, 6906792960, 10360189440, 20720378880]

約数ペア:

[(1, 20720378880), (2, 10360189440), (3, 6906792960), (4, 5180094720), (5, 4144075776), (6, 3453396480), (8, 2590047360), (9, 2302264320), (10, 2072037888), (12, 1726698240), (15, 1381358592), (16, 1295023680), (18, 1151132160), (20, 1036018944), (24, 863349120), (27, 767421440), (30, 690679296), (32, 647511840), (36, 575566080), (37, 560010240), (40, 518009472), (45, 460452864), (48, 431674560), (54, 383710720), (60, 345339648), (64, 323755920), (72, 287783040), (74, 280005120), (80, 259004736), (90, 230226432), (96, 215837280), (108, 191855360), (111, 186670080), (120, 172669824), (128, 161877960), (135, 153484288), (144, 143891520), (148, 140002560), (160, 129502368), (180, 115113216), (185, 112002048), (192, 107918640), (216, 95927680), (222, 93335040), (240, 86334912), (256, 80938980), (270, 76742144), (288, 71945760), (296, 70001280), (320, 64751184), (333, 62223360), (360, 57556608), (370, 56001024), (384, 53959320), (432, 47963840), (444, 46667520), (480, 43167456), (512, 40469490), (540, 38371072), (555, 37334016), (576, 35972880), (592, 35000640), (640, 32375592), (666, 31111680), (720, 28778304), (740, 28000512), (768, 26979660), (864, 23981920), (888, 23333760), (960, 21583728), (999, 20741120), (1024, 20234745), (1080, 19185536), (1110, 18667008), (1152, 17986440), (1184, 17500320), (1280, 16187796), (1332, 15555840), (1440, 14389152), (1480, 14000256), (1536, 13489830), (1665, 12444672), (1728, 11990960), (1776, 11666880), (1920, 10791864), (1998, 10370560), (2160, 9592768), (2220, 9333504), (2304, 8993220), (2368, 8750160), (2560, 8093898), (2664, 7777920), (2880, 7194576), (2960, 7000128), (3072, 6744915), (3330, 6222336), (3456, 5995480), (3552, 5833440), (3840, 5395932), (3996, 5185280), (4051, 5114880), (4320, 4796384), (4440, 4666752), (4608, 4496610), (4736, 4375080), (4995, 4148224), (5120, 4046949), (5328, 3888960), (5760, 3597288), (5920, 3500064), (6660, 3111168), (6912, 2997740), (7104, 2916720), (7680, 2697966), (7992, 2592640), (8102, 2557440), (8640, 2398192), (8880, 2333376), (9216, 2248305), (9472, 2187540), (9990, 2074112), (10656, 1944480), (11520, 1798644), (11840, 1750032), (12153, 1704960), (13320, 1555584), (13824, 1498870), (14208, 1458360), (15360, 1348983), (15984, 1296320), (16204, 1278720), (17280, 1199096), (17760, 1166688), (18944, 1093770), (19980, 1037056), (20255, 1022976), (21312, 972240), (23040, 899322), (23680, 875016), (24306, 852480), (26640, 777792), (27648, 749435), (28416, 729180), (31968, 648160), (32408, 639360), (34560, 599548), (35520, 583344), (36459, 568320), (37888, 546885), (39960, 518528), (40510, 511488), (42624, 486120), (46080, 449661), (47360, 437508), (48612, 426240), (53280, 388896), (56832, 364590), (60765, 340992), (63936, 324080), (64816, 319680), (69120, 299774), (71040, 291672), (72918, 284160), (79920, 259264), (81020, 255744), (85248, 243060), (94720, 218754), (97224, 213120), (106560, 194448), (109377, 189440), (113664, 182295), (121530, 170496), (127872, 162040), (129632, 159840), (138240, 149887), (142080, 145836)]