261655920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:445

約数の個数: 200

約数和(自身を含む): 918244800

約数和(自身を除く): 656588880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 149, 162, 180, 216, 240, 270, 271, 298, 324, 360, 405, 432, 447, 540, 542, 596, 648, 720, 745, 810, 813, 894, 1080, 1084, 1192, 1296, 1341, 1355, 1490, 1620, 1626, 1788, 2160, 2168, 2235, 2384, 2439, 2682, 2710, 2980, 3240, 3252, 3576, 4023, 4065, 4336, 4470, 4878, 5364, 5420, 5960, 6480, 6504, 6705, 7152, 7317, 8046, 8130, 8940, 9756, 10728, 10840, 11920, 12069, 12195, 13008, 13410, 14634, 16092, 16260, 17880, 19512, 20115, 21456, 21680, 21951, 24138, 24390, 26820, 29268, 32184, 32520, 35760, 36585, 39024, 40230, 40379, 43902, 48276, 48780, 53640, 58536, 60345, 64368, 65040, 73170, 80460, 80758, 87804, 96552, 97560, 107280, 109755, 117072, 120690, 121137, 146340, 160920, 161516, 175608, 193104, 195120, 201895, 219510, 241380, 242274, 292680, 321840, 323032, 351216, 363411, 403790, 439020, 482760, 484548, 585360, 605685, 646064, 726822, 807580, 878040, 965520, 969096, 1090233, 1211370, 1453644, 1615160, 1756080, 1817055, 1938192, 2180466, 2422740, 2907288, 3230320, 3270699, 3634110, 4360932, 4845480, 5451165, 5814576, 6541398, 7268220, 8721864, 9690960, 10902330, 13082796, 14536440, 16353495, 17443728, 21804660, 26165592, 29072880, 32706990, 43609320, 52331184, 65413980, 87218640, 130827960, 261655920]

約数ペア:

[(1, 261655920), (2, 130827960), (3, 87218640), (4, 65413980), (5, 52331184), (6, 43609320), (8, 32706990), (9, 29072880), (10, 26165592), (12, 21804660), (15, 17443728), (16, 16353495), (18, 14536440), (20, 13082796), (24, 10902330), (27, 9690960), (30, 8721864), (36, 7268220), (40, 6541398), (45, 5814576), (48, 5451165), (54, 4845480), (60, 4360932), (72, 3634110), (80, 3270699), (81, 3230320), (90, 2907288), (108, 2422740), (120, 2180466), (135, 1938192), (144, 1817055), (149, 1756080), (162, 1615160), (180, 1453644), (216, 1211370), (240, 1090233), (270, 969096), (271, 965520), (298, 878040), (324, 807580), (360, 726822), (405, 646064), (432, 605685), (447, 585360), (540, 484548), (542, 482760), (596, 439020), (648, 403790), (720, 363411), (745, 351216), (810, 323032), (813, 321840), (894, 292680), (1080, 242274), (1084, 241380), (1192, 219510), (1296, 201895), (1341, 195120), (1355, 193104), (1490, 175608), (1620, 161516), (1626, 160920), (1788, 146340), (2160, 121137), (2168, 120690), (2235, 117072), (2384, 109755), (2439, 107280), (2682, 97560), (2710, 96552), (2980, 87804), (3240, 80758), (3252, 80460), (3576, 73170), (4023, 65040), (4065, 64368), (4336, 60345), (4470, 58536), (4878, 53640), (5364, 48780), (5420, 48276), (5960, 43902), (6480, 40379), (6504, 40230), (6705, 39024), (7152, 36585), (7317, 35760), (8046, 32520), (8130, 32184), (8940, 29268), (9756, 26820), (10728, 24390), (10840, 24138), (11920, 21951), (12069, 21680), (12195, 21456), (13008, 20115), (13410, 19512), (14634, 17880), (16092, 16260)]