20168396640

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:200

約数の個数: 1152

約数和(自身を含む): 88562073600

約数和(自身を除く): 68393676960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 31, 32, 35, 36, 38, 40, 42, 43, 45, 48, 56, 57, 60, 62, 63, 70, 72, 76, 79, 80, 84, 86, 90, 93, 95, 96, 105, 112, 114, 120, 124, 126, 129, 133, 140, 144, 152, 155, 158, 160, 168, 171, 172, 180, 186, 190, 210, 215, 217, 224, 228, 237, 240, 248, 252, 258, 266, 279, 280, 285, 288, 301, 304, 310, 315, 316, 336, 342, 344, 360, 372, 380, 387, 395, 399, 420, 430, 434, 456, 465, 474, 480, 496, 504, 516, 532, 553, 558, 560, 570, 589, 602, 608, 620, 630, 632, 645, 651, 665, 672, 684, 688, 711, 720, 744, 760, 774, 790, 798, 817, 840, 855, 860, 868, 903, 912, 930, 948, 992, 1008, 1032, 1064, 1085, 1106, 1116, 1120, 1140, 1178, 1185, 1197, 1204, 1240, 1260, 1264, 1290, 1302, 1330, 1333, 1368, 1376, 1395, 1422, 1440, 1488, 1501, 1505, 1520, 1548, 1580, 1596, 1634, 1659, 1680, 1710, 1720, 1736, 1767, 1806, 1824, 1860, 1896, 1935, 1953, 1995, 2016, 2064, 2128, 2170, 2212, 2232, 2280, 2356, 2370, 2394, 2408, 2449, 2451, 2480, 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約数ペア:

[(1, 20168396640), (2, 10084198320), (3, 6722798880), (4, 5042099160), (5, 4033679328), (6, 3361399440), (7, 2881199520), (8, 2521049580), (9, 2240932960), (10, 2016839664), (12, 1680699720), (14, 1440599760), (15, 1344559776), (16, 1260524790), (18, 1120466480), (19, 1061494560), (20, 1008419832), (21, 960399840), (24, 840349860), (28, 720299880), (30, 672279888), (31, 650593440), (32, 630262395), (35, 576239904), (36, 560233240), (38, 530747280), (40, 504209916), (42, 480199920), (43, 469032480), (45, 448186592), (48, 420174930), (56, 360149940), (57, 353831520), (60, 336139944), (62, 325296720), (63, 320133280), (70, 288119952), (72, 280116620), (76, 265373640), (79, 255296160), (80, 252104958), (84, 240099960), (86, 234516240), (90, 224093296), (93, 216864480), (95, 212298912), (96, 210087465), (105, 192079968), (112, 180074970), (114, 176915760), (120, 168069972), (124, 162648360), (126, 160066640), (129, 156344160), (133, 151642080), (140, 144059976), (144, 140058310), (152, 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(1659, 12156960), (1680, 12004998), (1710, 11794384), (1720, 11725812), (1736, 11617740), (1767, 11413920), (1806, 11167440), (1824, 11057235), (1860, 10843224), (1896, 10637340), (1935, 10422944), (1953, 10326880), (1995, 10109472), (2016, 10004165), (2064, 9771510), (2128, 9477630), (2170, 9294192), (2212, 9117720), (2232, 9036020), (2280, 8845788), (2356, 8560440), (2370, 8509872), (2394, 8424560), (2408, 8375580), (2449, 8235360), (2451, 8228640), (2480, 8132418), (2520, 8003332), (2528, 7978005), (2580, 7817208), (2604, 7745160), (2660, 7582104), (2666, 7565040), (2709, 7444960), (2736, 7371490), (2765, 7294176), (2790, 7228816), (2844, 7091560), (2945, 6848352), (2976, 6777015), (3002, 6718320), (3010, 6700464), (3040, 6634341), (3096, 6514340), (3160, 6382404), (3192, 6318420), (3255, 6196128), (3268, 6171480), (3318, 6078480), (3360, 6002499), (3397, 5937120), (3420, 5897192), (3440, 5862906), (3472, 5808870), (3534, 5706960), (3555, 5673248), (3612, 5583720), (3720, 5421612), (3792, 5318670), (3870, 5211472), (3906, 5163440), (3990, 5054736), (3999, 5043360), (4085, 4937184), (4123, 4891680), (4128, 4885755), (4256, 4738815), (4340, 4647096), (4424, 4558860), (4464, 4518010), (4503, 4478880), (4515, 4466976), (4560, 4422894), (4712, 4280220), (4740, 4254936), (4788, 4212280), (4816, 4187790), (4898, 4117680), (4902, 4114320), (4960, 4066209), (4977, 4052320), (5040, 4001666), (5160, 3908604), (5208, 3872580), (5301, 3804640), (5320, 3791052), (5332, 3782520), (5418, 3722480), (5472, 3685745), (5530, 3647088), (5580, 3614408), (5688, 3545780), (5719, 3526560), (5890, 3424176), (5985, 3369824), (6004, 3359160), (6020, 3350232), (6192, 3257170), (6320, 3191202), (6384, 3159210), (6510, 3098064), (6536, 3085740), (6636, 3039240), (6665, 3026016), (6794, 2968560), (6840, 2948596), (6880, 2931453), (6944, 2904435), (7068, 2853480), (7110, 2836624), (7224, 2791860), (7347, 2745120), (7353, 2742880), (7440, 2710806), (7505, 2687328), (7584, 2659335), (7740, 2605736), (7812, 2581720), (7980, 2527368), (7998, 2521680), (8170, 2468592), (8246, 2445840), (8295, 2431392), (8680, 2323548), (8835, 2282784), (8848, 2279430), (8928, 2259005), (9006, 2239440), (9030, 2233488), (9120, 2211447), (9331, 2161440), (9424, 2140110), (9480, 2127468), (9576, 2106140), (9632, 2093895), (9765, 2065376), (9796, 2058840), (9804, 2057160), (9954, 2026160), (10080, 2000833), (10191, 1979040), (10320, 1954302), (10416, 1936290), (10507, 1919520), (10602, 1902320), (10640, 1895526), (10664, 1891260), (10836, 1861240), (11060, 1823544), (11160, 1807204), (11376, 1772890), (11438, 1763280), (11780, 1712088), (11970, 1684912), (11997, 1681120), (12008, 1679580), (12040, 1675116), (12245, 1647072), (12255, 1645728), (12369, 1630560), (12384, 1628585), (12640, 1595601), (12768, 1579605), (13020, 1549032), (13072, 1542870), (13272, 1519620), (13330, 1513008), (13509, 1492960), (13545, 1488992), (13588, 1484280), (13680, 1474298), (14136, 1426740), (14220, 1418312), 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