20172231520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{503}}^1\times {\mathrm{587}}^1$

素因数の和:1173

約数の個数: 192

約数和(自身を含む): 55562443776

約数和(自身を除く): 35390212256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 427, 488, 503, 560, 587, 610, 854, 976, 1006, 1120, 1174, 1220, 1708, 1952, 2012, 2135, 2348, 2440, 2515, 2935, 3416, 3521, 4024, 4109, 4270, 4696, 4880, 5030, 5870, 6832, 7042, 8048, 8218, 8540, 9392, 9760, 10060, 11740, 13664, 14084, 16096, 16436, 17080, 17605, 18784, 20120, 20545, 23480, 28168, 30683, 32872, 34160, 35210, 35807, 40240, 41090, 46960, 56336, 61366, 65744, 68320, 70420, 71614, 80480, 82180, 93920, 112672, 122732, 131488, 140840, 143228, 153415, 164360, 179035, 214781, 245464, 250649, 281680, 286456, 295261, 306830, 328720, 358070, 429562, 490928, 501298, 563360, 572912, 590522, 613660, 657440, 716140, 859124, 981856, 1002596, 1073905, 1145824, 1181044, 1227320, 1253245, 1432280, 1476305, 1718248, 2005192, 2066827, 2147810, 2362088, 2454640, 2506490, 2864560, 2952610, 3436496, 4010384, 4133654, 4295620, 4724176, 4909280, 5012980, 5729120, 5905220, 6872992, 8020768, 8267308, 8591240, 9448352, 10025960, 10334135, 11810440, 16534616, 17182480, 18010921, 20051920, 20668270, 23620880, 33069232, 34364960, 36021842, 40103840, 41336540, 47241760, 66138464, 72043684, 82673080, 90054605, 126076447, 144087368, 165346160, 180109210, 252152894, 288174736, 330692320, 360218420, 504305788, 576349472, 630382235, 720436840, 1008611576, 1260764470, 1440873680, 2017223152, 2521528940, 2881747360, 4034446304, 5043057880, 10086115760, 20172231520]

約数ペア:

[(1, 20172231520), (2, 10086115760), (4, 5043057880), (5, 4034446304), (7, 2881747360), (8, 2521528940), (10, 2017223152), (14, 1440873680), (16, 1260764470), (20, 1008611576), (28, 720436840), (32, 630382235), (35, 576349472), (40, 504305788), (56, 360218420), (61, 330692320), (70, 288174736), (80, 252152894), (112, 180109210), (122, 165346160), (140, 144087368), (160, 126076447), (224, 90054605), (244, 82673080), (280, 72043684), (305, 66138464), (427, 47241760), (488, 41336540), (503, 40103840), (560, 36021842), (587, 34364960), (610, 33069232), (854, 23620880), (976, 20668270), (1006, 20051920), (1120, 18010921), (1174, 17182480), (1220, 16534616), (1708, 11810440), (1952, 10334135), (2012, 10025960), (2135, 9448352), (2348, 8591240), (2440, 8267308), (2515, 8020768), (2935, 6872992), (3416, 5905220), (3521, 5729120), (4024, 5012980), (4109, 4909280), (4270, 4724176), (4696, 4295620), (4880, 4133654), (5030, 4010384), (5870, 3436496), (6832, 2952610), (7042, 2864560), (8048, 2506490), (8218, 2454640), (8540, 2362088), (9392, 2147810), (9760, 2066827), (10060, 2005192), (11740, 1718248), (13664, 1476305), (14084, 1432280), (16096, 1253245), (16436, 1227320), (17080, 1181044), (17605, 1145824), (18784, 1073905), (20120, 1002596), (20545, 981856), (23480, 859124), (28168, 716140), (30683, 657440), (32872, 613660), (34160, 590522), (35210, 572912), (35807, 563360), (40240, 501298), (41090, 490928), (46960, 429562), (56336, 358070), (61366, 328720), (65744, 306830), (68320, 295261), (70420, 286456), (71614, 281680), (80480, 250649), (82180, 245464), (93920, 214781), (112672, 179035), (122732, 164360), (131488, 153415), (140840, 143228)]