261335520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1429}}^1$

素因数の和:1577

約数の個数: 144

約数和(自身を含む): 899458560

約数和(自身を除く): 638123040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 127, 144, 160, 180, 240, 254, 288, 360, 381, 480, 508, 635, 720, 762, 1016, 1143, 1270, 1429, 1440, 1524, 1905, 2032, 2286, 2540, 2858, 3048, 3810, 4064, 4287, 4572, 5080, 5715, 5716, 6096, 7145, 7620, 8574, 9144, 10160, 11430, 11432, 12192, 12861, 14290, 15240, 17148, 18288, 20320, 21435, 22860, 22864, 25722, 28580, 30480, 34296, 36576, 42870, 45720, 45728, 51444, 57160, 60960, 64305, 68592, 85740, 91440, 102888, 114320, 128610, 137184, 171480, 181483, 182880, 205776, 228640, 257220, 342960, 362966, 411552, 514440, 544449, 685920, 725932, 907415, 1028880, 1088898, 1451864, 1633347, 1814830, 2057760, 2177796, 2722245, 2903728, 3266694, 3629660, 4355592, 5444490, 5807456, 6533388, 7259320, 8166735, 8711184, 10888980, 13066776, 14518640, 16333470, 17422368, 21777960, 26133552, 29037280, 32666940, 43555920, 52267104, 65333880, 87111840, 130667760, 261335520]

約数ペア:

[(1, 261335520), (2, 130667760), (3, 87111840), (4, 65333880), (5, 52267104), (6, 43555920), (8, 32666940), (9, 29037280), (10, 26133552), (12, 21777960), (15, 17422368), (16, 16333470), (18, 14518640), (20, 13066776), (24, 10888980), (30, 8711184), (32, 8166735), (36, 7259320), (40, 6533388), (45, 5807456), (48, 5444490), (60, 4355592), (72, 3629660), (80, 3266694), (90, 2903728), (96, 2722245), (120, 2177796), (127, 2057760), (144, 1814830), (160, 1633347), (180, 1451864), (240, 1088898), (254, 1028880), (288, 907415), (360, 725932), (381, 685920), (480, 544449), (508, 514440), (635, 411552), (720, 362966), (762, 342960), (1016, 257220), (1143, 228640), (1270, 205776), (1429, 182880), (1440, 181483), (1524, 171480), (1905, 137184), (2032, 128610), (2286, 114320), (2540, 102888), (2858, 91440), (3048, 85740), (3810, 68592), (4064, 64305), (4287, 60960), (4572, 57160), (5080, 51444), (5715, 45728), (5716, 45720), (6096, 42870), (7145, 36576), (7620, 34296), (8574, 30480), (9144, 28580), (10160, 25722), (11430, 22864), (11432, 22860), (12192, 21435), (12861, 20320), (14290, 18288), (15240, 17148)]