261287040

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19441}}^1$

素因数の和:19470

約数の個数: 128

約数和(自身を含む): 951880320

約数和(自身を除く): 690593280

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, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 19441, 38882, 58323, 77764, 97205, 116646, 136087, 155528, 194410, 233292, 272174, 291615, 311056, 388820, 408261, 466584, 544348, 583230, 622112, 680435, 777640, 816522, 933168, 1088696, 1166460, 1244224, 1360870, 1555280, 1633044, 1866336, 2041305, 2177392, 2332920, 2488448, 2721740, 3110560, 3266088, 3732672, 4082610, 4354784, 4665840, 5443480, 6221120, 6532176, 7465344, 8165220, 8709568, 9331680, 10886960, 12442240, 13064352, 16330440, 17419136, 18663360, 21773920, 26128704, 32660880, 37326720, 43547840, 52257408, 65321760, 87095680, 130643520, 261287040]

約数ペア:

[(1, 261287040), (2, 130643520), (3, 87095680), (4, 65321760), (5, 52257408), (6, 43547840), (7, 37326720), (8, 32660880), (10, 26128704), (12, 21773920), (14, 18663360), (15, 17419136), (16, 16330440), (20, 13064352), (21, 12442240), (24, 10886960), (28, 9331680), (30, 8709568), (32, 8165220), (35, 7465344), (40, 6532176), (42, 6221120), (48, 5443480), (56, 4665840), (60, 4354784), (64, 4082610), (70, 3732672), (80, 3266088), (84, 3110560), (96, 2721740), (105, 2488448), (112, 2332920), (120, 2177392), (128, 2041305), (140, 1866336), (160, 1633044), (168, 1555280), (192, 1360870), (210, 1244224), (224, 1166460), (240, 1088696), (280, 933168), (320, 816522), (336, 777640), (384, 680435), (420, 622112), (448, 583230), (480, 544348), (560, 466584), (640, 408261), (672, 388820), (840, 311056), (896, 291615), (960, 272174), (1120, 233292), (1344, 194410), (1680, 155528), (1920, 136087), (2240, 116646), (2688, 97205), (3360, 77764), (4480, 58323), (6720, 38882), (13440, 19441)]