20478767400

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 1152

約数和(自身を含む): 90560870400

約数和(自身を除く): 70082103000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 25, 26, 28, 30, 31, 35, 36, 37, 39, 40, 42, 45, 50, 52, 56, 60, 62, 63, 65, 70, 72, 74, 75, 78, 84, 90, 91, 93, 100, 104, 105, 109, 111, 117, 120, 124, 126, 130, 140, 148, 150, 155, 156, 168, 175, 180, 182, 185, 186, 195, 200, 210, 217, 218, 222, 225, 234, 248, 252, 259, 260, 273, 279, 280, 296, 300, 310, 312, 315, 325, 327, 333, 350, 360, 364, 370, 372, 390, 403, 420, 434, 436, 444, 450, 455, 465, 468, 481, 504, 518, 520, 525, 545, 546, 555, 558, 585, 600, 620, 630, 650, 651, 654, 666, 700, 728, 740, 744, 763, 775, 777, 780, 806, 819, 840, 868, 872, 888, 900, 910, 925, 930, 936, 962, 975, 981, 1036, 1050, 1085, 1090, 1092, 1110, 1116, 1147, 1170, 1209, 1240, 1260, 1295, 1300, 1302, 1308, 1332, 1365, 1395, 1400, 1417, 1443, 1480, 1526, 1550, 1554, 1560, 1575, 1612, 1635, 1638, 1665, 1736, 1800, 1820, 1850, 1860, 1924, 1950, 1953, 1962, 2015, 2072, 2100, 2170, 2180, 2184, 2220, 2232, 2275, 2289, 2294, 2325, 2331, 2340, 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約数ペア:

[(1, 20478767400), (2, 10239383700), (3, 6826255800), (4, 5119691850), (5, 4095753480), (6, 3413127900), (7, 2925538200), (8, 2559845925), (9, 2275418600), (10, 2047876740), (12, 1706563950), (13, 1575289800), (14, 1462769100), (15, 1365251160), (18, 1137709300), (20, 1023938370), (21, 975179400), (24, 853281975), (25, 819150696), (26, 787644900), (28, 731384550), (30, 682625580), (31, 660605400), (35, 585107640), (36, 568854650), (37, 553480200), (39, 525096600), (40, 511969185), (42, 487589700), (45, 455083720), (50, 409575348), (52, 393822450), (56, 365692275), (60, 341312790), (62, 330302700), (63, 325059800), (65, 315057960), (70, 292553820), (72, 284427325), (74, 276740100), (75, 273050232), (78, 262548300), (84, 243794850), (90, 227541860), (91, 225041400), (93, 220201800), (100, 204787674), (104, 196911225), (105, 195035880), (109, 187878600), (111, 184493400), (117, 175032200), (120, 170656395), (124, 165151350), (126, 162529900), (130, 157528980), (140, 146276910), (148, 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12703950), (1635, 12525240), (1638, 12502300), (1665, 12299560), (1736, 11796525), (1800, 11377093), (1820, 11252070), (1850, 11069604), (1860, 11010090), (1924, 10643850), (1950, 10501932), (1953, 10485800), (1962, 10437700), (2015, 10163160), (2072, 9883575), (2100, 9751794), (2170, 9437220), (2180, 9393930), (2184, 9376725), (2220, 9224670), (2232, 9175075), (2275, 9001656), (2289, 8946600), (2294, 8927100), (2325, 8808072), (2331, 8785400), (2340, 8751610), (2405, 8515080), (2418, 8469300), (2520, 8126495), (2590, 7906860), (2600, 7876449), (2604, 7864350), (2616, 7828275), (2664, 7687225), (2725, 7515144), (2730, 7501380), (2775, 7379736), (2790, 7340060), (2821, 7259400), (2834, 7226100), (2886, 7095900), (2925, 7001288), (3052, 6709950), (3100, 6606054), (3108, 6589050), (3150, 6501196), (3224, 6351975), (3255, 6291480), (3270, 6262620), (3276, 6251150), (3330, 6149780), (3367, 6082200), (3379, 6060600), (3441, 5951400), (3627, 5646200), (3640, 5626035), (3700, 5534802), (3720, 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(7800, 2625483), (7812, 2621450), (7848, 2609425), (8029, 2550600), (8060, 2540790), (8066, 2538900), (8175, 2505048), (8190, 2500460), (8325, 2459912), (8463, 2419800), (8502, 2408700), (8658, 2365300), (8680, 2359305), (9100, 2250414), (9156, 2236650), (9176, 2231775), (9300, 2202018), (9324, 2196350), (9620, 2128770), (9672, 2117325), (9765, 2097160), (9810, 2087540), (9919, 2064600), (10075, 2032632), (10101, 2027400), (10137, 2020200), (10323, 1983800), (10360, 1976715), (10850, 1887444), (10900, 1878786), (10920, 1875345), (11100, 1844934), (11160, 1835015), (11284, 1814850), (11336, 1806525), (11445, 1789320), (11470, 1785420), (11544, 1773975), (11655, 1757080), (11700, 1750322), (12025, 1703016), (12090, 1693860), (12099, 1692600), (12600, 1625299), (12753, 1605800), (12950, 1581372), (13020, 1572870), (13080, 1565655), (13320, 1537445), (13468, 1520550), (13516, 1515150), (13650, 1500276), (13734, 1491100), (13764, 1487850), (13950, 1468012), (14105, 1451880), (14170, 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