21258160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:84

約数の個数: 240

約数和(自身を含む): 68700960

約数和(自身を除く): 47442800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 29, 34, 35, 40, 44, 49, 55, 56, 58, 68, 70, 77, 80, 85, 88, 98, 110, 112, 116, 119, 136, 140, 145, 154, 170, 176, 187, 196, 203, 220, 232, 238, 245, 272, 280, 290, 308, 319, 340, 374, 385, 392, 406, 440, 464, 476, 490, 493, 539, 560, 580, 595, 616, 638, 680, 748, 770, 784, 812, 833, 880, 935, 952, 980, 986, 1015, 1078, 1160, 1190, 1232, 1276, 1309, 1360, 1421, 1496, 1540, 1595, 1624, 1666, 1870, 1904, 1960, 1972, 2030, 2156, 2233, 2320, 2380, 2465, 2552, 2618, 2695, 2842, 2992, 3080, 3190, 3248, 3332, 3451, 3740, 3920, 3944, 4060, 4165, 4312, 4466, 4760, 4930, 5104, 5236, 5390, 5423, 5684, 6160, 6380, 6545, 6664, 6902, 7105, 7480, 7888, 8120, 8330, 8624, 8932, 9163, 9520, 9860, 10472, 10780, 10846, 11165, 11368, 12760, 13090, 13328, 13804, 14210, 14960, 15631, 16240, 16660, 17255, 17864, 18326, 19720, 20944, 21560, 21692, 22330, 22736, 24157, 25520, 26180, 27115, 27608, 28420, 31262, 33320, 34510, 35728, 36652, 37961, 39440, 43120, 43384, 44660, 45815, 48314, 52360, 54230, 55216, 56840, 62524, 66640, 69020, 73304, 75922, 78155, 86768, 89320, 91630, 96628, 104720, 108460, 113680, 120785, 125048, 138040, 146608, 151844, 156310, 178640, 183260, 189805, 193256, 216920, 241570, 250096, 265727, 276080, 303688, 312620, 366520, 379610, 386512, 433840, 483140, 531454, 607376, 625240, 733040, 759220, 966280, 1062908, 1250480, 1328635, 1518440, 1932560, 2125816, 2657270, 3036880, 4251632, 5314540, 10629080, 21258160]

約数ペア:

[(1, 21258160), (2, 10629080), (4, 5314540), (5, 4251632), (7, 3036880), (8, 2657270), (10, 2125816), (11, 1932560), (14, 1518440), (16, 1328635), (17, 1250480), (20, 1062908), (22, 966280), (28, 759220), (29, 733040), (34, 625240), (35, 607376), (40, 531454), (44, 483140), (49, 433840), (55, 386512), (56, 379610), (58, 366520), (68, 312620), (70, 303688), (77, 276080), (80, 265727), (85, 250096), (88, 241570), (98, 216920), (110, 193256), (112, 189805), (116, 183260), (119, 178640), (136, 156310), (140, 151844), (145, 146608), (154, 138040), (170, 125048), (176, 120785), (187, 113680), (196, 108460), (203, 104720), (220, 96628), (232, 91630), (238, 89320), (245, 86768), (272, 78155), (280, 75922), (290, 73304), (308, 69020), (319, 66640), (340, 62524), (374, 56840), (385, 55216), (392, 54230), (406, 52360), (440, 48314), (464, 45815), (476, 44660), (490, 43384), (493, 43120), (539, 39440), (560, 37961), (580, 36652), (595, 35728), (616, 34510), (638, 33320), (680, 31262), (748, 28420), (770, 27608), (784, 27115), (812, 26180), (833, 25520), (880, 24157), (935, 22736), (952, 22330), (980, 21692), (986, 21560), (1015, 20944), (1078, 19720), (1160, 18326), (1190, 17864), (1232, 17255), (1276, 16660), (1309, 16240), (1360, 15631), (1421, 14960), (1496, 14210), (1540, 13804), (1595, 13328), (1624, 13090), (1666, 12760), (1870, 11368), (1904, 11165), (1960, 10846), (1972, 10780), (2030, 10472), (2156, 9860), (2233, 9520), (2320, 9163), (2380, 8932), (2465, 8624), (2552, 8330), (2618, 8120), (2695, 7888), (2842, 7480), (2992, 7105), (3080, 6902), (3190, 6664), (3248, 6545), (3332, 6380), (3451, 6160), (3740, 5684), (3920, 5423), (3944, 5390), (4060, 5236), (4165, 5104), (4312, 4930), (4466, 4760)]