261890160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155887}}^1$

素因数の和:155910

約数の個数: 80

約数和(自身を含む): 927845376

約数和(自身を除く): 665955216

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155887, 311774, 467661, 623548, 779435, 935322, 1091209, 1247096, 1558870, 1870644, 2182418, 2338305, 2494192, 3117740, 3273627, 3741288, 4364836, 4676610, 5456045, 6235480, 6547254, 7482576, 8729672, 9353220, 10912090, 12470960, 13094508, 16368135, 17459344, 18706440, 21824180, 26189016, 32736270, 37412880, 43648360, 52378032, 65472540, 87296720, 130945080, 261890160]

約数ペア:

[(1, 261890160), (2, 130945080), (3, 87296720), (4, 65472540), (5, 52378032), (6, 43648360), (7, 37412880), (8, 32736270), (10, 26189016), (12, 21824180), (14, 18706440), (15, 17459344), (16, 16368135), (20, 13094508), (21, 12470960), (24, 10912090), (28, 9353220), (30, 8729672), (35, 7482576), (40, 6547254), (42, 6235480), (48, 5456045), (56, 4676610), (60, 4364836), (70, 3741288), (80, 3273627), (84, 3117740), (105, 2494192), (112, 2338305), (120, 2182418), (140, 1870644), (168, 1558870), (210, 1247096), (240, 1091209), (280, 935322), (336, 779435), (420, 623548), (560, 467661), (840, 311774), (1680, 155887)]