20997670400

素因数分解:

$2^9\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8081}}^1$

素因数の和:8145

約数の個数: 240

約数和(自身を含む): 61513071840

約数和(自身を除く): 40515401440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 50, 56, 58, 64, 70, 80, 100, 112, 116, 128, 140, 145, 160, 175, 200, 203, 224, 232, 256, 280, 290, 320, 350, 400, 406, 448, 464, 512, 560, 580, 640, 700, 725, 800, 812, 896, 928, 1015, 1120, 1160, 1280, 1400, 1450, 1600, 1624, 1792, 1856, 2030, 2240, 2320, 2560, 2800, 2900, 3200, 3248, 3584, 3712, 4060, 4480, 4640, 5075, 5600, 5800, 6400, 6496, 7424, 8081, 8120, 8960, 9280, 10150, 11200, 11600, 12800, 12992, 14848, 16162, 16240, 17920, 18560, 20300, 22400, 23200, 25984, 32324, 32480, 37120, 40405, 40600, 44800, 46400, 51968, 56567, 64648, 64960, 74240, 80810, 81200, 89600, 92800, 103936, 113134, 129296, 129920, 161620, 162400, 185600, 202025, 226268, 234349, 258592, 259840, 282835, 323240, 324800, 371200, 404050, 452536, 468698, 517184, 519680, 565670, 646480, 649600, 808100, 905072, 937396, 1034368, 1131340, 1171745, 1292960, 1299200, 1414175, 1616200, 1640443, 1810144, 1874792, 2068736, 2262680, 2343490, 2585920, 2598400, 2828350, 3232400, 3280886, 3620288, 3749584, 4137472, 4525360, 4686980, 5171840, 5656700, 5858725, 6464800, 6561772, 7240576, 7499168, 8202215, 9050720, 9373960, 10343680, 11313400, 11717450, 12929600, 13123544, 14481152, 14998336, 16404430, 18101440, 18747920, 20687360, 22626800, 23434900, 25859200, 26247088, 28962304, 29996672, 32808860, 36202880, 37495840, 41011075, 45253600, 46869800, 51718400, 52494176, 59993344, 65617720, 72405760, 74991680, 82022150, 90507200, 93739600, 103436800, 104988352, 119986688, 131235440, 144811520, 149983360, 164044300, 181014400, 187479200, 209976704, 262470880, 299966720, 328088600, 362028800, 374958400, 419953408, 524941760, 599933440, 656177200, 724057600, 749916800, 839906816, 1049883520, 1312354400, 1499833600, 2099767040, 2624708800, 2999667200, 4199534080, 5249417600, 10498835200, 20997670400]

約数ペア:

[(1, 20997670400), (2, 10498835200), (4, 5249417600), (5, 4199534080), (7, 2999667200), (8, 2624708800), (10, 2099767040), (14, 1499833600), (16, 1312354400), (20, 1049883520), (25, 839906816), (28, 749916800), (29, 724057600), (32, 656177200), (35, 599933440), (40, 524941760), (50, 419953408), (56, 374958400), (58, 362028800), (64, 328088600), (70, 299966720), (80, 262470880), (100, 209976704), (112, 187479200), (116, 181014400), (128, 164044300), (140, 149983360), (145, 144811520), (160, 131235440), (175, 119986688), (200, 104988352), (203, 103436800), (224, 93739600), (232, 90507200), (256, 82022150), (280, 74991680), (290, 72405760), (320, 65617720), (350, 59993344), (400, 52494176), (406, 51718400), (448, 46869800), (464, 45253600), (512, 41011075), (560, 37495840), (580, 36202880), (640, 32808860), (700, 29996672), (725, 28962304), (800, 26247088), (812, 25859200), (896, 23434900), (928, 22626800), (1015, 20687360), (1120, 18747920), (1160, 18101440), (1280, 16404430), (1400, 14998336), (1450, 14481152), (1600, 13123544), (1624, 12929600), (1792, 11717450), (1856, 11313400), (2030, 10343680), (2240, 9373960), (2320, 9050720), (2560, 8202215), (2800, 7499168), (2900, 7240576), (3200, 6561772), (3248, 6464800), (3584, 5858725), (3712, 5656700), (4060, 5171840), (4480, 4686980), (4640, 4525360), (5075, 4137472), (5600, 3749584), (5800, 3620288), (6400, 3280886), (6496, 3232400), (7424, 2828350), (8081, 2598400), (8120, 2585920), (8960, 2343490), (9280, 2262680), (10150, 2068736), (11200, 1874792), (11600, 1810144), (12800, 1640443), (12992, 1616200), (14848, 1414175), (16162, 1299200), (16240, 1292960), (17920, 1171745), (18560, 1131340), (20300, 1034368), (22400, 937396), (23200, 905072), (25984, 808100), (32324, 649600), (32480, 646480), (37120, 565670), (40405, 519680), (40600, 517184), (44800, 468698), (46400, 452536), (51968, 404050), (56567, 371200), (64648, 324800), (64960, 323240), (74240, 282835), (80810, 259840), (81200, 258592), (89600, 234349), (92800, 226268), (103936, 202025), (113134, 185600), (129296, 162400), (129920, 161620)]