20900218880

素因数分解:

$2^{11}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 384

約数和(自身を含む): 57316896000

約数和(自身を除く): 36416677120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 71, 76, 80, 85, 89, 95, 128, 136, 142, 152, 160, 170, 178, 190, 256, 272, 284, 304, 320, 323, 340, 355, 356, 380, 445, 512, 544, 568, 608, 640, 646, 680, 710, 712, 760, 890, 1024, 1088, 1136, 1207, 1216, 1280, 1292, 1349, 1360, 1420, 1424, 1513, 1520, 1615, 1691, 1780, 2048, 2176, 2272, 2414, 2432, 2560, 2584, 2698, 2720, 2840, 2848, 3026, 3040, 3230, 3382, 3560, 4352, 4544, 4828, 4864, 5120, 5168, 5396, 5440, 5680, 5696, 6035, 6052, 6080, 6319, 6460, 6745, 6764, 7120, 7565, 8455, 8704, 9088, 9656, 9728, 10240, 10336, 10792, 10880, 11360, 11392, 12070, 12104, 12160, 12638, 12920, 13490, 13528, 14240, 15130, 16910, 17408, 18176, 19312, 19456, 20672, 21584, 21760, 22720, 22784, 22933, 24140, 24208, 24320, 25276, 25840, 26980, 27056, 28480, 28747, 30260, 31595, 33820, 34816, 36352, 38624, 38912, 41344, 43168, 43520, 45440, 45568, 45866, 48280, 48416, 48640, 50552, 51680, 53960, 54112, 56960, 57494, 60520, 63190, 67640, 72704, 77248, 82688, 86336, 87040, 90880, 91136, 91732, 96560, 96832, 97280, 101104, 103360, 107423, 107920, 108224, 113920, 114665, 114988, 120061, 121040, 126380, 135280, 143735, 145408, 154496, 165376, 172672, 174080, 181760, 182272, 183464, 193120, 193664, 194560, 202208, 206720, 214846, 215840, 216448, 227840, 229330, 229976, 240122, 242080, 252760, 270560, 287470, 308992, 330752, 345344, 363520, 366928, 386240, 387328, 404416, 413440, 429692, 431680, 432896, 455680, 458660, 459952, 480244, 484160, 505520, 537115, 541120, 574940, 600305, 617984, 661504, 690688, 727040, 733856, 772480, 774656, 808832, 826880, 859384, 863360, 865792, 911360, 917320, 919904, 960488, 968320, 1011040, 1074230, 1082240, 1149880, 1200610, 1235968, 1381376, 1467712, 1544960, 1549312, 1617664, 1653760, 1718768, 1726720, 1731584, 1834640, 1839808, 1920976, 1936640, 2022080, 2041037, 2148460, 2164480, 2299760, 2401220, 2471936, 2762752, 2935424, 3089920, 3098624, 3235328, 3307520, 3437536, 3453440, 3463168, 3669280, 3679616, 3841952, 3873280, 4044160, 4082074, 4296920, 4328960, 4599520, 4802440, 5870848, 6179840, 6470656, 6875072, 6906880, 7338560, 7359232, 7683904, 7746560, 8088320, 8164148, 8593840, 8657920, 9199040, 9604880, 10205185, 11741696, 12359680, 12941312, 13750144, 13813760, 14677120, 14718464, 15367808, 15493120, 16176640, 16328296, 17187680, 17315840, 18398080, 19209760, 20410370, 23483392, 27500288, 29354240, 29436928, 30735616, 32353280, 32656592, 34375360, 36796160, 38419520, 40820740, 46966784, 55000576, 58708480, 58873856, 61471232, 64706560, 65313184, 68750720, 73592320, 76839040, 81641480, 110001152, 117416960, 122942464, 130626368, 137501440, 147184640, 153678080, 163282960, 220002304, 234833920, 245884928, 261252736, 275002880, 294369280, 307356160, 326565920, 522505472, 550005760, 614712320, 653131840, 1045010944, 1100011520, 1229424640, 1306263680, 2090021888, 2612527360, 4180043776, 5225054720, 10450109440, 20900218880]

約数ペア:

[(1, 20900218880), (2, 10450109440), (4, 5225054720), (5, 4180043776), (8, 2612527360), (10, 2090021888), (16, 1306263680), (17, 1229424640), (19, 1100011520), (20, 1045010944), (32, 653131840), (34, 614712320), (38, 550005760), (40, 522505472), (64, 326565920), (68, 307356160), (71, 294369280), (76, 275002880), (80, 261252736), (85, 245884928), (89, 234833920), (95, 220002304), (128, 163282960), (136, 153678080), (142, 147184640), (152, 137501440), (160, 130626368), (170, 122942464), (178, 117416960), (190, 110001152), (256, 81641480), (272, 76839040), (284, 73592320), (304, 68750720), (320, 65313184), (323, 64706560), (340, 61471232), (355, 58873856), (356, 58708480), (380, 55000576), (445, 46966784), (512, 40820740), (544, 38419520), (568, 36796160), (608, 34375360), (640, 32656592), (646, 32353280), (680, 30735616), (710, 29436928), (712, 29354240), (760, 27500288), (890, 23483392), (1024, 20410370), (1088, 19209760), (1136, 18398080), (1207, 17315840), (1216, 17187680), (1280, 16328296), (1292, 16176640), (1349, 15493120), (1360, 15367808), (1420, 14718464), (1424, 14677120), (1513, 13813760), (1520, 13750144), (1615, 12941312), (1691, 12359680), (1780, 11741696), (2048, 10205185), (2176, 9604880), (2272, 9199040), (2414, 8657920), (2432, 8593840), (2560, 8164148), (2584, 8088320), (2698, 7746560), (2720, 7683904), (2840, 7359232), (2848, 7338560), (3026, 6906880), (3040, 6875072), (3230, 6470656), (3382, 6179840), (3560, 5870848), (4352, 4802440), (4544, 4599520), (4828, 4328960), (4864, 4296920), (5120, 4082074), (5168, 4044160), (5396, 3873280), (5440, 3841952), (5680, 3679616), (5696, 3669280), (6035, 3463168), (6052, 3453440), (6080, 3437536), (6319, 3307520), (6460, 3235328), (6745, 3098624), (6764, 3089920), (7120, 2935424), (7565, 2762752), (8455, 2471936), (8704, 2401220), (9088, 2299760), (9656, 2164480), (9728, 2148460), (10240, 2041037), (10336, 2022080), (10792, 1936640), (10880, 1920976), (11360, 1839808), (11392, 1834640), (12070, 1731584), (12104, 1726720), (12160, 1718768), (12638, 1653760), (12920, 1617664), (13490, 1549312), (13528, 1544960), (14240, 1467712), (15130, 1381376), (16910, 1235968), (17408, 1200610), (18176, 1149880), (19312, 1082240), (19456, 1074230), (20672, 1011040), (21584, 968320), (21760, 960488), (22720, 919904), (22784, 917320), (22933, 911360), (24140, 865792), (24208, 863360), (24320, 859384), (25276, 826880), (25840, 808832), (26980, 774656), (27056, 772480), (28480, 733856), (28747, 727040), (30260, 690688), (31595, 661504), (33820, 617984), (34816, 600305), (36352, 574940), (38624, 541120), (38912, 537115), (41344, 505520), (43168, 484160), (43520, 480244), (45440, 459952), (45568, 458660), (45866, 455680), (48280, 432896), (48416, 431680), (48640, 429692), (50552, 413440), (51680, 404416), (53960, 387328), (54112, 386240), (56960, 366928), (57494, 363520), (60520, 345344), (63190, 330752), (67640, 308992), (72704, 287470), (77248, 270560), (82688, 252760), (86336, 242080), (87040, 240122), (90880, 229976), (91136, 229330), (91732, 227840), (96560, 216448), (96832, 215840), (97280, 214846), (101104, 206720), (103360, 202208), (107423, 194560), (107920, 193664), (108224, 193120), (113920, 183464), (114665, 182272), (114988, 181760), (120061, 174080), (121040, 172672), (126380, 165376), (135280, 154496), (143735, 145408)]