20806139520

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23609}}^1$

素因数の和:23657

約数の個数: 320

約数和(自身を含む): 78676547400

約数和(自身を除く): 57870407880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 81, 85, 90, 96, 102, 108, 120, 128, 135, 136, 144, 153, 160, 162, 170, 180, 192, 204, 216, 240, 255, 270, 272, 288, 306, 320, 324, 340, 360, 384, 405, 408, 432, 459, 480, 510, 540, 544, 576, 612, 640, 648, 680, 720, 765, 810, 816, 864, 918, 960, 1020, 1080, 1088, 1152, 1224, 1296, 1360, 1377, 1440, 1530, 1620, 1632, 1728, 1836, 1920, 2040, 2160, 2176, 2295, 2448, 2592, 2720, 2754, 2880, 3060, 3240, 3264, 3456, 3672, 4080, 4320, 4590, 4896, 5184, 5440, 5508, 5760, 6120, 6480, 6528, 6885, 7344, 8160, 8640, 9180, 9792, 10368, 10880, 11016, 12240, 12960, 13770, 14688, 16320, 17280, 18360, 19584, 22032, 23609, 24480, 25920, 27540, 29376, 32640, 36720, 44064, 47218, 48960, 51840, 55080, 58752, 70827, 73440, 88128, 94436, 97920, 110160, 118045, 141654, 146880, 176256, 188872, 212481, 220320, 236090, 283308, 293760, 354135, 377744, 401353, 424962, 440640, 472180, 566616, 637443, 708270, 755488, 802706, 849924, 881280, 944360, 1062405, 1133232, 1204059, 1274886, 1416540, 1510976, 1605412, 1699848, 1888720, 1912329, 2006765, 2124810, 2266464, 2408118, 2549772, 2833080, 3021952, 3187215, 3210824, 3399696, 3612177, 3777440, 3824658, 4013530, 4249620, 4532928, 4816236, 5099544, 5666160, 6020295, 6374430, 6421648, 6799392, 7224354, 7554880, 7649316, 8027060, 8499240, 9065856, 9561645, 9632472, 10199088, 10836531, 11332320, 12040590, 12748860, 12843296, 13598784, 14448708, 15109760, 15298632, 16054120, 16998480, 18060885, 19123290, 19264944, 20398176, 21673062, 22664640, 24081180, 25497720, 25686592, 27197568, 28897416, 30597264, 32108240, 32509593, 33996960, 36121770, 38246580, 38529888, 40796352, 43346124, 45329280, 48162360, 50995440, 51373184, 54182655, 57794832, 61194528, 64216480, 65019186, 67993920, 72243540, 76493160, 77059776, 81592704, 86692248, 96324720, 101990880, 108365310, 115589664, 122389056, 128432960, 130038372, 135987840, 144487080, 152986320, 154119552, 162547965, 173384496, 192649440, 203981760, 216730620, 231179328, 244778112, 256865920, 260076744, 288974160, 305972640, 325095930, 346768992, 385298880, 407963520, 433461240, 462358656, 520153488, 577948320, 611945280, 650191860, 693537984, 770597760, 866922480, 1040306976, 1155896640, 1223890560, 1300383720, 1387075968, 1733844960, 2080613952, 2311793280, 2600767440, 3467689920, 4161227904, 5201534880, 6935379840, 10403069760, 20806139520]

約数ペア:

[(1, 20806139520), (2, 10403069760), (3, 6935379840), (4, 5201534880), (5, 4161227904), (6, 3467689920), (8, 2600767440), (9, 2311793280), (10, 2080613952), (12, 1733844960), (15, 1387075968), (16, 1300383720), (17, 1223890560), (18, 1155896640), (20, 1040306976), (24, 866922480), (27, 770597760), (30, 693537984), (32, 650191860), (34, 611945280), (36, 577948320), (40, 520153488), (45, 462358656), (48, 433461240), (51, 407963520), (54, 385298880), (60, 346768992), (64, 325095930), (68, 305972640), (72, 288974160), (80, 260076744), (81, 256865920), (85, 244778112), (90, 231179328), (96, 216730620), (102, 203981760), (108, 192649440), (120, 173384496), (128, 162547965), (135, 154119552), (136, 152986320), (144, 144487080), (153, 135987840), (160, 130038372), (162, 128432960), (170, 122389056), (180, 115589664), (192, 108365310), (204, 101990880), (216, 96324720), (240, 86692248), (255, 81592704), (270, 77059776), (272, 76493160), (288, 72243540), (306, 67993920), (320, 65019186), (324, 64216480), (340, 61194528), (360, 57794832), (384, 54182655), (405, 51373184), (408, 50995440), (432, 48162360), (459, 45329280), (480, 43346124), (510, 40796352), (540, 38529888), (544, 38246580), (576, 36121770), (612, 33996960), (640, 32509593), (648, 32108240), (680, 30597264), (720, 28897416), (765, 27197568), (810, 25686592), (816, 25497720), (864, 24081180), (918, 22664640), (960, 21673062), (1020, 20398176), (1080, 19264944), (1088, 19123290), (1152, 18060885), (1224, 16998480), (1296, 16054120), (1360, 15298632), (1377, 15109760), (1440, 14448708), (1530, 13598784), (1620, 12843296), (1632, 12748860), (1728, 12040590), (1836, 11332320), (1920, 10836531), (2040, 10199088), (2160, 9632472), (2176, 9561645), (2295, 9065856), (2448, 8499240), (2592, 8027060), (2720, 7649316), (2754, 7554880), (2880, 7224354), (3060, 6799392), (3240, 6421648), (3264, 6374430), (3456, 6020295), (3672, 5666160), (4080, 5099544), (4320, 4816236), (4590, 4532928), (4896, 4249620), (5184, 4013530), (5440, 3824658), (5508, 3777440), (5760, 3612177), (6120, 3399696), (6480, 3210824), (6528, 3187215), (6885, 3021952), (7344, 2833080), (8160, 2549772), (8640, 2408118), (9180, 2266464), (9792, 2124810), (10368, 2006765), (10880, 1912329), (11016, 1888720), (12240, 1699848), (12960, 1605412), (13770, 1510976), (14688, 1416540), (16320, 1274886), (17280, 1204059), (18360, 1133232), (19584, 1062405), (22032, 944360), (23609, 881280), (24480, 849924), (25920, 802706), (27540, 755488), (29376, 708270), (32640, 637443), (36720, 566616), (44064, 472180), (47218, 440640), (48960, 424962), (51840, 401353), (55080, 377744), (58752, 354135), (70827, 293760), (73440, 283308), (88128, 236090), (94436, 220320), (97920, 212481), (110160, 188872), (118045, 176256), (141654, 146880)]