261784320

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{9739}}^1$

素因数の和:9770

約数の個数: 144

約数和(自身を含む): 955610880

約数和(自身を除く): 693826560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 9739, 13440, 19478, 26880, 29217, 38956, 48695, 58434, 68173, 77912, 97390, 116868, 136346, 146085, 155824, 194780, 204519, 233736, 272692, 292170, 311648, 340865, 389560, 409038, 467472, 545384, 584340, 623296, 681730, 779120, 818076, 934944, 1022595, 1090768, 1168680, 1246592, 1363460, 1558240, 1636152, 1869888, 2045190, 2181536, 2337360, 2493184, 2726920, 3116480, 3272304, 3739776, 4090380, 4363072, 4674720, 5453840, 6232960, 6544608, 7479552, 8180760, 8726144, 9349440, 10907680, 12465920, 13089216, 16361520, 17452288, 18698880, 21815360, 26178432, 32723040, 37397760, 43630720, 52356864, 65446080, 87261440, 130892160, 261784320]

約数ペア:

[(1, 261784320), (2, 130892160), (3, 87261440), (4, 65446080), (5, 52356864), (6, 43630720), (7, 37397760), (8, 32723040), (10, 26178432), (12, 21815360), (14, 18698880), (15, 17452288), (16, 16361520), (20, 13089216), (21, 12465920), (24, 10907680), (28, 9349440), (30, 8726144), (32, 8180760), (35, 7479552), (40, 6544608), (42, 6232960), (48, 5453840), (56, 4674720), (60, 4363072), (64, 4090380), (70, 3739776), (80, 3272304), (84, 3116480), (96, 2726920), (105, 2493184), (112, 2337360), (120, 2181536), (128, 2045190), (140, 1869888), (160, 1636152), (168, 1558240), (192, 1363460), (210, 1246592), (224, 1168680), (240, 1090768), (256, 1022595), (280, 934944), (320, 818076), (336, 779120), (384, 681730), (420, 623296), (448, 584340), (480, 545384), (560, 467472), (640, 409038), (672, 389560), (768, 340865), (840, 311648), (896, 292170), (960, 272692), (1120, 233736), (1280, 204519), (1344, 194780), (1680, 155824), (1792, 146085), (1920, 136346), (2240, 116868), (2688, 97390), (3360, 77912), (3840, 68173), (4480, 58434), (5376, 48695), (6720, 38956), (8960, 29217), (9739, 26880), (13440, 19478)]