2001771520

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 264

約数和(自身を含む): 5712603840

約数和(自身を除く): 3710832320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 79, 80, 98, 101, 112, 128, 140, 158, 160, 196, 202, 224, 245, 256, 280, 316, 320, 392, 395, 404, 448, 490, 505, 512, 553, 560, 632, 640, 707, 784, 790, 808, 896, 980, 1010, 1024, 1106, 1120, 1264, 1280, 1414, 1568, 1580, 1616, 1792, 1960, 2020, 2212, 2240, 2528, 2560, 2765, 2828, 3136, 3160, 3232, 3535, 3584, 3871, 3920, 4040, 4424, 4480, 4949, 5056, 5120, 5530, 5656, 6272, 6320, 6464, 7070, 7168, 7742, 7840, 7979, 8080, 8848, 8960, 9898, 10112, 11060, 11312, 12544, 12640, 12928, 14140, 15484, 15680, 15958, 16160, 17696, 17920, 19355, 19796, 20224, 22120, 22624, 24745, 25088, 25280, 25856, 28280, 30968, 31360, 31916, 32320, 35392, 35840, 38710, 39592, 39895, 40448, 44240, 45248, 49490, 50176, 50560, 51712, 55853, 56560, 61936, 62720, 63832, 64640, 70784, 77420, 79184, 79790, 80896, 88480, 90496, 98980, 101120, 103424, 111706, 113120, 123872, 125440, 127664, 129280, 141568, 154840, 158368, 159580, 176960, 180992, 197960, 202240, 223412, 226240, 247744, 250880, 255328, 258560, 279265, 283136, 309680, 316736, 319160, 353920, 361984, 390971, 395920, 404480, 446824, 452480, 495488, 510656, 517120, 558530, 566272, 619360, 633472, 638320, 707840, 723968, 781942, 791840, 893648, 904960, 990976, 1021312, 1117060, 1238720, 1266944, 1276640, 1415680, 1563884, 1583680, 1787296, 1809920, 1954855, 1981952, 2042624, 2234120, 2477440, 2533888, 2553280, 2831360, 3127768, 3167360, 3574592, 3619840, 3909710, 3963904, 4085248, 4468240, 4954880, 5067776, 5106560, 6255536, 6334720, 7149184, 7819420, 8170496, 8936480, 9909760, 10213120, 12511072, 12669440, 14298368, 15638840, 17872960, 19819520, 20426240, 25022144, 25338880, 28596736, 31277680, 35745920, 40852480, 50044288, 57193472, 62555360, 71491840, 100088576, 125110720, 142983680, 200177152, 250221440, 285967360, 400354304, 500442880, 1000885760, 2001771520]

約数ペア:

[(1, 2001771520), (2, 1000885760), (4, 500442880), (5, 400354304), (7, 285967360), (8, 250221440), (10, 200177152), (14, 142983680), (16, 125110720), (20, 100088576), (28, 71491840), (32, 62555360), (35, 57193472), (40, 50044288), (49, 40852480), (56, 35745920), (64, 31277680), (70, 28596736), (79, 25338880), (80, 25022144), (98, 20426240), (101, 19819520), (112, 17872960), (128, 15638840), (140, 14298368), (158, 12669440), (160, 12511072), (196, 10213120), (202, 9909760), (224, 8936480), (245, 8170496), (256, 7819420), (280, 7149184), (316, 6334720), (320, 6255536), (392, 5106560), (395, 5067776), (404, 4954880), (448, 4468240), (490, 4085248), (505, 3963904), (512, 3909710), (553, 3619840), (560, 3574592), (632, 3167360), (640, 3127768), (707, 2831360), (784, 2553280), (790, 2533888), (808, 2477440), (896, 2234120), (980, 2042624), (1010, 1981952), (1024, 1954855), (1106, 1809920), (1120, 1787296), (1264, 1583680), (1280, 1563884), (1414, 1415680), (1568, 1276640), (1580, 1266944), (1616, 1238720), (1792, 1117060), (1960, 1021312), (2020, 990976), (2212, 904960), (2240, 893648), (2528, 791840), (2560, 781942), (2765, 723968), (2828, 707840), (3136, 638320), (3160, 633472), (3232, 619360), (3535, 566272), (3584, 558530), (3871, 517120), (3920, 510656), (4040, 495488), (4424, 452480), (4480, 446824), (4949, 404480), (5056, 395920), (5120, 390971), (5530, 361984), (5656, 353920), (6272, 319160), (6320, 316736), (6464, 309680), (7070, 283136), (7168, 279265), (7742, 258560), (7840, 255328), (7979, 250880), (8080, 247744), (8848, 226240), (8960, 223412), (9898, 202240), (10112, 197960), (11060, 180992), (11312, 176960), (12544, 159580), (12640, 158368), (12928, 154840), (14140, 141568), (15484, 129280), (15680, 127664), (15958, 125440), (16160, 123872), (17696, 113120), (17920, 111706), (19355, 103424), (19796, 101120), (20224, 98980), (22120, 90496), (22624, 88480), (24745, 80896), (25088, 79790), (25280, 79184), (25856, 77420), (28280, 70784), (30968, 64640), (31360, 63832), (31916, 62720), (32320, 61936), (35392, 56560), (35840, 55853), (38710, 51712), (39592, 50560), (39895, 50176), (40448, 49490), (44240, 45248)]