20212198720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{2791}}^1$

素因数の和:2929

約数の個数: 224

約数和(自身を含む): 56983067136

約数和(自身を除く): 36770868416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 61, 64, 70, 80, 106, 112, 122, 140, 160, 212, 224, 244, 265, 280, 305, 320, 371, 424, 427, 448, 488, 530, 560, 610, 742, 848, 854, 976, 1060, 1120, 1220, 1484, 1696, 1708, 1855, 1952, 2120, 2135, 2240, 2440, 2791, 2968, 3233, 3392, 3416, 3710, 3904, 4240, 4270, 4880, 5582, 5936, 6466, 6832, 7420, 8480, 8540, 9760, 11164, 11872, 12932, 13664, 13955, 14840, 16165, 16960, 17080, 19520, 19537, 22328, 22631, 23744, 25864, 27328, 27910, 29680, 32330, 34160, 39074, 44656, 45262, 51728, 55820, 59360, 64660, 68320, 78148, 89312, 90524, 97685, 103456, 111640, 113155, 118720, 129320, 136640, 147923, 156296, 170251, 178624, 181048, 195370, 206912, 223280, 226310, 258640, 295846, 312592, 340502, 362096, 390740, 446560, 452620, 517280, 591692, 625184, 681004, 724192, 739615, 781480, 851255, 893120, 905240, 1034560, 1035461, 1183384, 1191757, 1250368, 1362008, 1448384, 1479230, 1562960, 1702510, 1810480, 2070922, 2366768, 2383514, 2724016, 2958460, 3125920, 3405020, 3620960, 4141844, 4733536, 4767028, 5177305, 5448032, 5916920, 5958785, 6251840, 6810040, 7241920, 8283688, 9023303, 9467072, 9534056, 10354610, 10896064, 11833840, 11917570, 13620080, 16567376, 18046606, 19068112, 20709220, 23667680, 23835140, 27240160, 33134752, 36093212, 38136224, 41418440, 45116515, 47335360, 47670280, 54480320, 63163121, 66269504, 72186424, 76272448, 82836880, 90233030, 95340560, 126326242, 144372848, 165673760, 180466060, 190681120, 252652484, 288745696, 315815605, 331347520, 360932120, 381362240, 505304968, 577491392, 631631210, 721864240, 1010609936, 1263262420, 1443728480, 2021219872, 2526524840, 2887456960, 4042439744, 5053049680, 10106099360, 20212198720]

約数ペア:

[(1, 20212198720), (2, 10106099360), (4, 5053049680), (5, 4042439744), (7, 2887456960), (8, 2526524840), (10, 2021219872), (14, 1443728480), (16, 1263262420), (20, 1010609936), (28, 721864240), (32, 631631210), (35, 577491392), (40, 505304968), (53, 381362240), (56, 360932120), (61, 331347520), (64, 315815605), (70, 288745696), (80, 252652484), (106, 190681120), (112, 180466060), (122, 165673760), (140, 144372848), (160, 126326242), (212, 95340560), (224, 90233030), (244, 82836880), (265, 76272448), (280, 72186424), (305, 66269504), (320, 63163121), (371, 54480320), (424, 47670280), (427, 47335360), (448, 45116515), (488, 41418440), (530, 38136224), (560, 36093212), (610, 33134752), (742, 27240160), (848, 23835140), (854, 23667680), (976, 20709220), (1060, 19068112), (1120, 18046606), (1220, 16567376), (1484, 13620080), (1696, 11917570), (1708, 11833840), (1855, 10896064), (1952, 10354610), (2120, 9534056), (2135, 9467072), (2240, 9023303), (2440, 8283688), (2791, 7241920), (2968, 6810040), (3233, 6251840), (3392, 5958785), (3416, 5916920), (3710, 5448032), (3904, 5177305), (4240, 4767028), (4270, 4733536), (4880, 4141844), (5582, 3620960), (5936, 3405020), (6466, 3125920), (6832, 2958460), (7420, 2724016), (8480, 2383514), (8540, 2366768), (9760, 2070922), (11164, 1810480), (11872, 1702510), (12932, 1562960), (13664, 1479230), (13955, 1448384), (14840, 1362008), (16165, 1250368), (16960, 1191757), (17080, 1183384), (19520, 1035461), (19537, 1034560), (22328, 905240), (22631, 893120), (23744, 851255), (25864, 781480), (27328, 739615), (27910, 724192), (29680, 681004), (32330, 625184), (34160, 591692), (39074, 517280), (44656, 452620), (45262, 446560), (51728, 390740), (55820, 362096), (59360, 340502), (64660, 312592), (68320, 295846), (78148, 258640), (89312, 226310), (90524, 223280), (97685, 206912), (103456, 195370), (111640, 181048), (113155, 178624), (118720, 170251), (129320, 156296), (136640, 147923)]