20615813120

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:449

約数の個数: 288

約数和(自身を含む): 58114733040

約数和(自身を除く): 37498919920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 181, 196, 224, 227, 245, 256, 280, 320, 362, 392, 448, 454, 490, 512, 560, 640, 724, 784, 896, 905, 908, 980, 1024, 1120, 1135, 1267, 1280, 1448, 1568, 1589, 1792, 1810, 1816, 1960, 2048, 2240, 2270, 2534, 2560, 2896, 3136, 3178, 3584, 3620, 3632, 3920, 4480, 4540, 5068, 5120, 5792, 6272, 6335, 6356, 7168, 7240, 7264, 7840, 7945, 8869, 8960, 9080, 10136, 10240, 11123, 11584, 12544, 12670, 12712, 14336, 14480, 14528, 15680, 15890, 17738, 17920, 18160, 20272, 22246, 23168, 25088, 25340, 25424, 28960, 29056, 31360, 31780, 35476, 35840, 36320, 40544, 41087, 44345, 44492, 46336, 50176, 50680, 50848, 55615, 57920, 58112, 62720, 63560, 70952, 71680, 72640, 81088, 82174, 88690, 88984, 92672, 100352, 101360, 101696, 111230, 115840, 116224, 125440, 127120, 141904, 145280, 162176, 164348, 177380, 177968, 185344, 202720, 203392, 205435, 222460, 231680, 232448, 250880, 254240, 283808, 287609, 290560, 324352, 328696, 354760, 355936, 370688, 405440, 406784, 410870, 444920, 463360, 464896, 501760, 508480, 567616, 575218, 581120, 648704, 657392, 709520, 711872, 810880, 813568, 821740, 889840, 926720, 1016960, 1135232, 1150436, 1162240, 1297408, 1314784, 1419040, 1423744, 1438045, 1621760, 1627136, 1643480, 1779680, 1853440, 2013263, 2033920, 2270464, 2300872, 2324480, 2594816, 2629568, 2838080, 2847488, 2876090, 3243520, 3254272, 3286960, 3559360, 4026526, 4067840, 4540928, 4601744, 5259136, 5676160, 5694976, 5752180, 6487040, 6573920, 7118720, 8053052, 8135680, 9081856, 9203488, 10066315, 10518272, 11352320, 11389952, 11504360, 12974080, 13147840, 14237440, 16106104, 16271360, 18163712, 18406976, 20132630, 21036544, 22704640, 22779904, 23008720, 26295680, 28474880, 32212208, 36813952, 40265260, 42073088, 45409280, 46017440, 52591360, 56949760, 64424416, 73627904, 80530520, 84146176, 90818560, 92034880, 105182720, 113899520, 128848832, 147255808, 161061040, 184069760, 210365440, 257697664, 294511616, 322122080, 368139520, 420730880, 515395328, 589023232, 644244160, 736279040, 1030790656, 1288488320, 1472558080, 2061581312, 2576976640, 2945116160, 4123162624, 5153953280, 10307906560, 20615813120]

約数ペア:

[(1, 20615813120), (2, 10307906560), (4, 5153953280), (5, 4123162624), (7, 2945116160), (8, 2576976640), (10, 2061581312), (14, 1472558080), (16, 1288488320), (20, 1030790656), (28, 736279040), (32, 644244160), (35, 589023232), (40, 515395328), (49, 420730880), (56, 368139520), (64, 322122080), (70, 294511616), (80, 257697664), (98, 210365440), (112, 184069760), (128, 161061040), (140, 147255808), (160, 128848832), (181, 113899520), (196, 105182720), (224, 92034880), (227, 90818560), (245, 84146176), (256, 80530520), (280, 73627904), (320, 64424416), (362, 56949760), (392, 52591360), (448, 46017440), (454, 45409280), (490, 42073088), (512, 40265260), (560, 36813952), (640, 32212208), (724, 28474880), (784, 26295680), (896, 23008720), (905, 22779904), (908, 22704640), (980, 21036544), (1024, 20132630), (1120, 18406976), (1135, 18163712), (1267, 16271360), (1280, 16106104), (1448, 14237440), (1568, 13147840), (1589, 12974080), (1792, 11504360), (1810, 11389952), (1816, 11352320), (1960, 10518272), (2048, 10066315), (2240, 9203488), (2270, 9081856), (2534, 8135680), (2560, 8053052), (2896, 7118720), (3136, 6573920), (3178, 6487040), (3584, 5752180), (3620, 5694976), (3632, 5676160), (3920, 5259136), (4480, 4601744), (4540, 4540928), (5068, 4067840), (5120, 4026526), (5792, 3559360), (6272, 3286960), (6335, 3254272), (6356, 3243520), (7168, 2876090), (7240, 2847488), (7264, 2838080), (7840, 2629568), (7945, 2594816), (8869, 2324480), (8960, 2300872), (9080, 2270464), (10136, 2033920), (10240, 2013263), (11123, 1853440), (11584, 1779680), (12544, 1643480), (12670, 1627136), (12712, 1621760), (14336, 1438045), (14480, 1423744), (14528, 1419040), (15680, 1314784), (15890, 1297408), (17738, 1162240), (17920, 1150436), (18160, 1135232), (20272, 1016960), (22246, 926720), (23168, 889840), (25088, 821740), (25340, 813568), (25424, 810880), (28960, 711872), (29056, 709520), (31360, 657392), (31780, 648704), (35476, 581120), (35840, 575218), (36320, 567616), (40544, 508480), (41087, 501760), (44345, 464896), (44492, 463360), (46336, 444920), (50176, 410870), (50680, 406784), (50848, 405440), (55615, 370688), (57920, 355936), (58112, 354760), (62720, 328696), (63560, 324352), (70952, 290560), (71680, 287609), (72640, 283808), (81088, 254240), (82174, 250880), (88690, 232448), (88984, 231680), (92672, 222460), (100352, 205435), (101360, 203392), (101696, 202720), (111230, 185344), (115840, 177968), (116224, 177380), (125440, 164348), (127120, 162176), (141904, 145280)]