20988047360

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:838

約数の個数: 208

約数和(自身を含む): 57875902272

約数和(自身を除く): 36887854912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 281, 320, 448, 512, 521, 560, 562, 640, 896, 1024, 1042, 1120, 1124, 1280, 1405, 1792, 1967, 2048, 2084, 2240, 2248, 2560, 2605, 2810, 3584, 3647, 3934, 4096, 4168, 4480, 4496, 5120, 5210, 5620, 7168, 7294, 7868, 8336, 8960, 8992, 9835, 10240, 10420, 11240, 14336, 14588, 15736, 16672, 17920, 17984, 18235, 19670, 20480, 20840, 22480, 28672, 29176, 31472, 33344, 35840, 35968, 36470, 39340, 41680, 44960, 58352, 62944, 66688, 71680, 71936, 72940, 78680, 83360, 89920, 116704, 125888, 133376, 143360, 143872, 145880, 146401, 157360, 166720, 179840, 233408, 251776, 266752, 287744, 291760, 292802, 314720, 333440, 359680, 466816, 503552, 533504, 575488, 583520, 585604, 629440, 666880, 719360, 732005, 933632, 1007104, 1024807, 1067008, 1150976, 1167040, 1171208, 1258880, 1333760, 1438720, 1464010, 1867264, 2014208, 2049614, 2134016, 2334080, 2342416, 2517760, 2667520, 2877440, 2928020, 3734528, 4028416, 4099228, 4668160, 4684832, 5035520, 5124035, 5335040, 5754880, 5856040, 7469056, 8056832, 8198456, 9336320, 9369664, 10071040, 10248070, 10670080, 11712080, 14938112, 16396912, 18672640, 18739328, 20142080, 20496140, 23424160, 32793824, 37345280, 37478656, 40284160, 40992280, 46848320, 65587648, 74690560, 74957312, 81984560, 93696640, 131175296, 149914624, 163969120, 187393280, 262350592, 299829248, 327938240, 374786560, 524701184, 599658496, 655876480, 749573120, 1049402368, 1311752960, 1499146240, 2098804736, 2623505920, 2998292480, 4197609472, 5247011840, 10494023680, 20988047360]

約数ペア:

[(1, 20988047360), (2, 10494023680), (4, 5247011840), (5, 4197609472), (7, 2998292480), (8, 2623505920), (10, 2098804736), (14, 1499146240), (16, 1311752960), (20, 1049402368), (28, 749573120), (32, 655876480), (35, 599658496), (40, 524701184), (56, 374786560), (64, 327938240), (70, 299829248), (80, 262350592), (112, 187393280), (128, 163969120), (140, 149914624), (160, 131175296), (224, 93696640), (256, 81984560), (280, 74957312), (281, 74690560), (320, 65587648), (448, 46848320), (512, 40992280), (521, 40284160), (560, 37478656), (562, 37345280), (640, 32793824), (896, 23424160), (1024, 20496140), (1042, 20142080), (1120, 18739328), (1124, 18672640), (1280, 16396912), (1405, 14938112), (1792, 11712080), (1967, 10670080), (2048, 10248070), (2084, 10071040), (2240, 9369664), (2248, 9336320), (2560, 8198456), (2605, 8056832), (2810, 7469056), (3584, 5856040), (3647, 5754880), (3934, 5335040), (4096, 5124035), (4168, 5035520), (4480, 4684832), (4496, 4668160), (5120, 4099228), (5210, 4028416), (5620, 3734528), (7168, 2928020), (7294, 2877440), (7868, 2667520), (8336, 2517760), (8960, 2342416), (8992, 2334080), (9835, 2134016), (10240, 2049614), (10420, 2014208), (11240, 1867264), (14336, 1464010), (14588, 1438720), (15736, 1333760), (16672, 1258880), (17920, 1171208), (17984, 1167040), (18235, 1150976), (19670, 1067008), (20480, 1024807), (20840, 1007104), (22480, 933632), (28672, 732005), (29176, 719360), (31472, 666880), (33344, 629440), (35840, 585604), (35968, 583520), (36470, 575488), (39340, 533504), (41680, 503552), (44960, 466816), (58352, 359680), (62944, 333440), (66688, 314720), (71680, 292802), (71936, 291760), (72940, 287744), (78680, 266752), (83360, 251776), (89920, 233408), (116704, 179840), (125888, 166720), (133376, 157360), (143360, 146401), (143872, 145880)]