257201280

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{6379}}^1$

素因数の和:6411

約数の個数: 192

約数和(自身を含む): 1015185600

約数和(自身を除く): 757984320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6379, 6720, 8064, 10080, 12758, 13440, 19137, 20160, 25516, 31895, 38274, 40320, 44653, 51032, 57411, 63790, 76548, 89306, 95685, 102064, 114822, 127580, 133959, 153096, 178612, 191370, 204128, 223265, 229644, 255160, 267918, 287055, 306192, 357224, 382740, 401877, 408256, 446530, 459288, 510320, 535836, 574110, 612384, 669795, 714448, 765480, 803754, 816512, 893060, 918576, 1020640, 1071672, 1148220, 1224768, 1339590, 1428896, 1530960, 1607508, 1786120, 1837152, 2009385, 2041280, 2143344, 2296440, 2449536, 2679180, 2857792, 3061920, 3215016, 3572240, 3674304, 4018770, 4082560, 4286688, 4592880, 5358360, 5715584, 6123840, 6430032, 7144480, 7348608, 8037540, 8573376, 9185760, 10716720, 12247680, 12860064, 14288960, 16075080, 17146752, 18371520, 21433440, 25720128, 28577920, 32150160, 36743040, 42866880, 51440256, 64300320, 85733760, 128600640, 257201280]

約数ペア:

[(1, 257201280), (2, 128600640), (3, 85733760), (4, 64300320), (5, 51440256), (6, 42866880), (7, 36743040), (8, 32150160), (9, 28577920), (10, 25720128), (12, 21433440), (14, 18371520), (15, 17146752), (16, 16075080), (18, 14288960), (20, 12860064), (21, 12247680), (24, 10716720), (28, 9185760), (30, 8573376), (32, 8037540), (35, 7348608), (36, 7144480), (40, 6430032), (42, 6123840), (45, 5715584), (48, 5358360), (56, 4592880), (60, 4286688), (63, 4082560), (64, 4018770), (70, 3674304), (72, 3572240), (80, 3215016), (84, 3061920), (90, 2857792), (96, 2679180), (105, 2449536), (112, 2296440), (120, 2143344), (126, 2041280), (128, 2009385), (140, 1837152), (144, 1786120), (160, 1607508), (168, 1530960), (180, 1428896), (192, 1339590), (210, 1224768), (224, 1148220), (240, 1071672), (252, 1020640), (280, 918576), (288, 893060), (315, 816512), (320, 803754), (336, 765480), (360, 714448), (384, 669795), (420, 612384), (448, 574110), (480, 535836), (504, 510320), (560, 459288), (576, 446530), (630, 408256), (640, 401877), (672, 382740), (720, 357224), (840, 306192), (896, 287055), (960, 267918), (1008, 255160), (1120, 229644), (1152, 223265), (1260, 204128), (1344, 191370), (1440, 178612), (1680, 153096), (1920, 133959), (2016, 127580), (2240, 114822), (2520, 102064), (2688, 95685), (2880, 89306), (3360, 76548), (4032, 63790), (4480, 57411), (5040, 51032), (5760, 44653), (6379, 40320), (6720, 38274), (8064, 31895), (10080, 25516), (12758, 20160), (13440, 19137)]