20921094720

素因数分解:

$2^6\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3023}}^1$

素因数の和:3144

約数の個数: 336

約数和(自身を含む): 75488474880

約数和(自身を除く): 54567380160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 89, 90, 96, 108, 120, 135, 144, 160, 162, 178, 180, 192, 216, 240, 243, 267, 270, 288, 320, 324, 356, 360, 405, 432, 445, 480, 486, 534, 540, 576, 648, 712, 720, 801, 810, 864, 890, 960, 972, 1068, 1080, 1215, 1296, 1335, 1424, 1440, 1602, 1620, 1728, 1780, 1944, 2136, 2160, 2403, 2430, 2592, 2670, 2848, 2880, 3023, 3204, 3240, 3560, 3888, 4005, 4272, 4320, 4806, 4860, 5184, 5340, 5696, 6046, 6408, 6480, 7120, 7209, 7776, 8010, 8544, 8640, 9069, 9612, 9720, 10680, 12015, 12092, 12816, 12960, 14240, 14418, 15115, 15552, 16020, 17088, 18138, 19224, 19440, 21360, 21627, 24030, 24184, 25632, 25920, 27207, 28480, 28836, 30230, 32040, 36045, 36276, 38448, 38880, 42720, 43254, 45345, 48060, 48368, 51264, 54414, 57672, 60460, 64080, 72090, 72552, 76896, 77760, 81621, 85440, 86508, 90690, 96120, 96736, 108135, 108828, 115344, 120920, 128160, 136035, 144180, 145104, 153792, 163242, 173016, 181380, 192240, 193472, 216270, 217656, 230688, 241840, 244863, 256320, 269047, 272070, 288360, 290208, 326484, 346032, 362760, 384480, 408105, 432540, 435312, 461376, 483680, 489726, 538094, 544140, 576720, 580416, 652968, 692064, 725520, 734589, 768960, 807141, 816210, 865080, 870624, 967360, 979452, 1076188, 1088280, 1153440, 1224315, 1305936, 1345235, 1384128, 1451040, 1469178, 1614282, 1632420, 1730160, 1741248, 1958904, 2152376, 2176560, 2306880, 2421423, 2448630, 2611872, 2690470, 2902080, 2938356, 3228564, 3264840, 3460320, 3672945, 3917808, 4035705, 4304752, 4353120, 4842846, 4897260, 5223744, 5380940, 5876712, 6457128, 6529680, 6920640, 7264269, 7345890, 7835616, 8071410, 8609504, 8706240, 9685692, 9794520, 10761880, 11753424, 12107115, 12914256, 13059360, 14528538, 14691780, 15671232, 16142820, 17219008, 19371384, 19589040, 21523760, 21792807, 23506848, 24214230, 25828512, 26118720, 29057076, 29383560, 32285640, 36321345, 38742768, 39178080, 43047520, 43585614, 47013696, 48428460, 51657024, 58114152, 58767120, 64571280, 65378421, 72642690, 77485536, 78356160, 86095040, 87171228, 96856920, 108964035, 116228304, 117534240, 129142560, 130756842, 145285380, 154971072, 174342456, 193713840, 217928070, 232456608, 235068480, 258285120, 261513684, 290570760, 326892105, 348684912, 387427680, 435856140, 464913216, 523027368, 581141520, 653784210, 697369824, 774855360, 871712280, 1046054736, 1162283040, 1307568420, 1394739648, 1743424560, 2092109472, 2324566080, 2615136840, 3486849120, 4184218944, 5230273680, 6973698240, 10460547360, 20921094720]

約数ペア:

[(1, 20921094720), (2, 10460547360), (3, 6973698240), (4, 5230273680), (5, 4184218944), (6, 3486849120), (8, 2615136840), (9, 2324566080), (10, 2092109472), (12, 1743424560), (15, 1394739648), (16, 1307568420), (18, 1162283040), (20, 1046054736), (24, 871712280), (27, 774855360), (30, 697369824), (32, 653784210), (36, 581141520), (40, 523027368), (45, 464913216), (48, 435856140), (54, 387427680), (60, 348684912), (64, 326892105), (72, 290570760), (80, 261513684), (81, 258285120), (89, 235068480), (90, 232456608), (96, 217928070), (108, 193713840), (120, 174342456), (135, 154971072), (144, 145285380), (160, 130756842), (162, 129142560), (178, 117534240), (180, 116228304), (192, 108964035), (216, 96856920), (240, 87171228), (243, 86095040), (267, 78356160), (270, 77485536), (288, 72642690), (320, 65378421), (324, 64571280), (356, 58767120), (360, 58114152), (405, 51657024), (432, 48428460), (445, 47013696), (480, 43585614), (486, 43047520), (534, 39178080), (540, 38742768), (576, 36321345), (648, 32285640), (712, 29383560), (720, 29057076), (801, 26118720), (810, 25828512), (864, 24214230), (890, 23506848), (960, 21792807), (972, 21523760), (1068, 19589040), (1080, 19371384), (1215, 17219008), (1296, 16142820), (1335, 15671232), (1424, 14691780), (1440, 14528538), (1602, 13059360), (1620, 12914256), (1728, 12107115), (1780, 11753424), (1944, 10761880), (2136, 9794520), (2160, 9685692), (2403, 8706240), (2430, 8609504), (2592, 8071410), (2670, 7835616), (2848, 7345890), (2880, 7264269), (3023, 6920640), (3204, 6529680), (3240, 6457128), (3560, 5876712), (3888, 5380940), (4005, 5223744), (4272, 4897260), (4320, 4842846), (4806, 4353120), (4860, 4304752), (5184, 4035705), (5340, 3917808), (5696, 3672945), (6046, 3460320), (6408, 3264840), (6480, 3228564), (7120, 2938356), (7209, 2902080), (7776, 2690470), (8010, 2611872), (8544, 2448630), (8640, 2421423), (9069, 2306880), (9612, 2176560), (9720, 2152376), (10680, 1958904), (12015, 1741248), (12092, 1730160), (12816, 1632420), (12960, 1614282), (14240, 1469178), (14418, 1451040), (15115, 1384128), (15552, 1345235), (16020, 1305936), (17088, 1224315), (18138, 1153440), (19224, 1088280), (19440, 1076188), (21360, 979452), (21627, 967360), (24030, 870624), (24184, 865080), (25632, 816210), (25920, 807141), (27207, 768960), (28480, 734589), (28836, 725520), (30230, 692064), (32040, 652968), (36045, 580416), (36276, 576720), (38448, 544140), (38880, 538094), (42720, 489726), (43254, 483680), (45345, 461376), (48060, 435312), (48368, 432540), (51264, 408105), (54414, 384480), (57672, 362760), (60460, 346032), (64080, 326484), (72090, 290208), (72552, 288360), (76896, 272070), (77760, 269047), (81621, 256320), (85440, 244863), (86508, 241840), (90690, 230688), (96120, 217656), (96736, 216270), (108135, 193472), (108828, 192240), (115344, 181380), (120920, 173016), (128160, 163242), (136035, 153792), (144180, 145104)]