216811280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 240

約数和(自身を含む): 641208960

約数和(自身を除く): 424397680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 41, 49, 56, 70, 71, 76, 80, 82, 95, 98, 112, 133, 140, 142, 152, 164, 190, 196, 205, 245, 266, 280, 284, 287, 304, 328, 355, 380, 392, 410, 490, 497, 532, 560, 568, 574, 656, 665, 710, 760, 779, 784, 820, 931, 980, 994, 1064, 1136, 1148, 1330, 1349, 1420, 1435, 1520, 1558, 1640, 1862, 1960, 1988, 2009, 2128, 2296, 2485, 2660, 2698, 2840, 2870, 2911, 3116, 3280, 3479, 3724, 3895, 3920, 3976, 4018, 4592, 4655, 4970, 5320, 5396, 5453, 5680, 5740, 5822, 6232, 6745, 6958, 7448, 7790, 7952, 8036, 9310, 9443, 9940, 10045, 10640, 10792, 10906, 11480, 11644, 12464, 13490, 13916, 14555, 14896, 15580, 16072, 17395, 18620, 18886, 19880, 20090, 20377, 21584, 21812, 22960, 23288, 26980, 27265, 27832, 29110, 31160, 32144, 34790, 37240, 37772, 38171, 39760, 40180, 40754, 43624, 46576, 47215, 53960, 54530, 55309, 55664, 58220, 62320, 66101, 69580, 74480, 75544, 76342, 80360, 81508, 87248, 94430, 101885, 107920, 109060, 110618, 116440, 132202, 139160, 142639, 151088, 152684, 160720, 163016, 188860, 190855, 203770, 218120, 221236, 232880, 264404, 276545, 278320, 285278, 305368, 326032, 330505, 377720, 381710, 387163, 407540, 436240, 442472, 528808, 553090, 570556, 610736, 661010, 713195, 755440, 763420, 774326, 815080, 884944, 1057616, 1106180, 1141112, 1322020, 1426390, 1526840, 1548652, 1630160, 1935815, 2212360, 2282224, 2644040, 2710141, 2852780, 3053680, 3097304, 3871630, 4424720, 5288080, 5420282, 5705560, 6194608, 7743260, 10840564, 11411120, 13550705, 15486520, 21681128, 27101410, 30973040, 43362256, 54202820, 108405640, 216811280]

約数ペア:

[(1, 216811280), (2, 108405640), (4, 54202820), (5, 43362256), (7, 30973040), (8, 27101410), (10, 21681128), (14, 15486520), (16, 13550705), (19, 11411120), (20, 10840564), (28, 7743260), (35, 6194608), (38, 5705560), (40, 5420282), (41, 5288080), (49, 4424720), (56, 3871630), (70, 3097304), (71, 3053680), (76, 2852780), (80, 2710141), (82, 2644040), (95, 2282224), (98, 2212360), (112, 1935815), (133, 1630160), (140, 1548652), (142, 1526840), (152, 1426390), (164, 1322020), (190, 1141112), (196, 1106180), (205, 1057616), (245, 884944), (266, 815080), (280, 774326), (284, 763420), (287, 755440), (304, 713195), (328, 661010), (355, 610736), (380, 570556), (392, 553090), (410, 528808), (490, 442472), (497, 436240), (532, 407540), (560, 387163), (568, 381710), (574, 377720), (656, 330505), (665, 326032), (710, 305368), (760, 285278), (779, 278320), (784, 276545), (820, 264404), (931, 232880), (980, 221236), (994, 218120), (1064, 203770), (1136, 190855), (1148, 188860), (1330, 163016), (1349, 160720), (1420, 152684), (1435, 151088), (1520, 142639), (1558, 139160), (1640, 132202), (1862, 116440), (1960, 110618), (1988, 109060), (2009, 107920), (2128, 101885), (2296, 94430), (2485, 87248), (2660, 81508), (2698, 80360), (2840, 76342), (2870, 75544), (2911, 74480), (3116, 69580), (3280, 66101), (3479, 62320), (3724, 58220), (3895, 55664), (3920, 55309), (3976, 54530), (4018, 53960), (4592, 47215), (4655, 46576), (4970, 43624), (5320, 40754), (5396, 40180), (5453, 39760), (5680, 38171), (5740, 37772), (5822, 37240), (6232, 34790), (6745, 32144), (6958, 31160), (7448, 29110), (7790, 27832), (7952, 27265), (8036, 26980), (9310, 23288), (9443, 22960), (9940, 21812), (10045, 21584), (10640, 20377), (10792, 20090), (10906, 19880), (11480, 18886), (11644, 18620), (12464, 17395), (13490, 16072), (13916, 15580), (14555, 14896)]