20180638720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{18859}}^1$

素因数の和:18914

約数の個数: 176

約数和(自身を含む): 55593244800

約数和(自身を除く): 35412606080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 128, 152, 160, 176, 190, 209, 220, 256, 304, 320, 352, 380, 418, 440, 512, 608, 640, 704, 760, 836, 880, 1024, 1045, 1216, 1280, 1408, 1520, 1672, 1760, 2090, 2432, 2560, 2816, 3040, 3344, 3520, 4180, 4864, 5120, 5632, 6080, 6688, 7040, 8360, 9728, 11264, 12160, 13376, 14080, 16720, 18859, 19456, 24320, 26752, 28160, 33440, 37718, 48640, 53504, 56320, 66880, 75436, 94295, 97280, 107008, 133760, 150872, 188590, 207449, 214016, 267520, 301744, 358321, 377180, 414898, 535040, 603488, 716642, 754360, 829796, 1037245, 1070080, 1206976, 1433284, 1508720, 1659592, 1791605, 2074490, 2413952, 2866568, 3017440, 3319184, 3583210, 3941531, 4148980, 4827904, 5733136, 6034880, 6638368, 7166420, 7883062, 8297960, 9655808, 11466272, 12069760, 13276736, 14332840, 15766124, 16595920, 19311616, 19707655, 22932544, 24139520, 26553472, 28665680, 31532248, 33191840, 39415310, 45865088, 48279040, 53106944, 57331360, 63064496, 66383680, 78830620, 91730176, 96558080, 106213888, 114662720, 126128992, 132767360, 157661240, 183460352, 212427776, 229325440, 252257984, 265534720, 315322480, 366920704, 458650880, 504515968, 531069440, 630644960, 917301760, 1009031936, 1062138880, 1261289920, 1834603520, 2018063872, 2522579840, 4036127744, 5045159680, 10090319360, 20180638720]

約数ペア:

[(1, 20180638720), (2, 10090319360), (4, 5045159680), (5, 4036127744), (8, 2522579840), (10, 2018063872), (11, 1834603520), (16, 1261289920), (19, 1062138880), (20, 1009031936), (22, 917301760), (32, 630644960), (38, 531069440), (40, 504515968), (44, 458650880), (55, 366920704), (64, 315322480), (76, 265534720), (80, 252257984), (88, 229325440), (95, 212427776), (110, 183460352), (128, 157661240), (152, 132767360), (160, 126128992), (176, 114662720), (190, 106213888), (209, 96558080), (220, 91730176), (256, 78830620), (304, 66383680), (320, 63064496), (352, 57331360), (380, 53106944), (418, 48279040), (440, 45865088), (512, 39415310), (608, 33191840), (640, 31532248), (704, 28665680), (760, 26553472), (836, 24139520), (880, 22932544), (1024, 19707655), (1045, 19311616), (1216, 16595920), (1280, 15766124), (1408, 14332840), (1520, 13276736), (1672, 12069760), (1760, 11466272), (2090, 9655808), (2432, 8297960), (2560, 7883062), (2816, 7166420), (3040, 6638368), (3344, 6034880), (3520, 5733136), (4180, 4827904), (4864, 4148980), (5120, 3941531), (5632, 3583210), (6080, 3319184), (6688, 3017440), (7040, 2866568), (8360, 2413952), (9728, 2074490), (11264, 1791605), (12160, 1659592), (13376, 1508720), (14080, 1433284), (16720, 1206976), (18859, 1070080), (19456, 1037245), (24320, 829796), (26752, 754360), (28160, 716642), (33440, 603488), (37718, 535040), (48640, 414898), (53504, 377180), (56320, 358321), (66880, 301744), (75436, 267520), (94295, 214016), (97280, 207449), (107008, 188590), (133760, 150872)]