816375280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:256

約数の個数: 240

約数和(自身を含む): 2368910880

約数和(自身を除く): 1552535600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 97, 98, 112, 113, 133, 140, 152, 190, 194, 196, 226, 245, 266, 280, 304, 380, 388, 392, 452, 485, 490, 532, 560, 565, 665, 679, 760, 776, 784, 791, 904, 931, 970, 980, 1064, 1130, 1330, 1358, 1520, 1552, 1582, 1808, 1843, 1862, 1940, 1960, 2128, 2147, 2260, 2660, 2716, 3164, 3395, 3686, 3724, 3880, 3920, 3955, 4294, 4520, 4655, 4753, 5320, 5432, 5537, 6328, 6790, 7372, 7448, 7760, 7910, 8588, 9040, 9215, 9310, 9506, 10640, 10735, 10864, 10961, 11074, 12656, 12901, 13580, 14744, 14896, 15029, 15820, 17176, 18430, 18620, 19012, 21470, 21922, 22148, 23765, 25802, 27160, 27685, 29488, 30058, 31640, 34352, 36860, 37240, 38024, 42940, 43844, 44296, 47530, 51604, 54320, 54805, 55370, 60116, 63280, 64505, 73720, 74480, 75145, 76048, 76727, 85880, 87688, 88592, 90307, 95060, 103208, 105203, 109610, 110740, 120232, 129010, 147440, 150290, 153454, 171760, 175376, 180614, 190120, 206416, 208259, 210406, 219220, 221480, 240464, 258020, 300580, 306908, 361228, 380240, 383635, 416518, 420812, 438440, 442960, 451535, 516040, 526015, 537089, 601160, 613816, 722456, 767270, 833036, 841624, 876880, 903070, 1032080, 1041295, 1052030, 1074178, 1202320, 1227632, 1444912, 1457813, 1534540, 1666072, 1683248, 1806140, 2082590, 2104060, 2148356, 2685445, 2915626, 3069080, 3332144, 3612280, 4165180, 4208120, 4296712, 5370890, 5831252, 6138160, 7224560, 7289065, 8330360, 8416240, 8593424, 10204691, 10741780, 11662504, 14578130, 16660720, 20409382, 21483560, 23325008, 29156260, 40818764, 42967120, 51023455, 58312520, 81637528, 102046910, 116625040, 163275056, 204093820, 408187640, 816375280]

約数ペア:

[(1, 816375280), (2, 408187640), (4, 204093820), (5, 163275056), (7, 116625040), (8, 102046910), (10, 81637528), (14, 58312520), (16, 51023455), (19, 42967120), (20, 40818764), (28, 29156260), (35, 23325008), (38, 21483560), (40, 20409382), (49, 16660720), (56, 14578130), (70, 11662504), (76, 10741780), (80, 10204691), (95, 8593424), (97, 8416240), (98, 8330360), (112, 7289065), (113, 7224560), (133, 6138160), (140, 5831252), (152, 5370890), (190, 4296712), (194, 4208120), (196, 4165180), (226, 3612280), (245, 3332144), (266, 3069080), (280, 2915626), (304, 2685445), (380, 2148356), (388, 2104060), (392, 2082590), (452, 1806140), (485, 1683248), (490, 1666072), (532, 1534540), (560, 1457813), (565, 1444912), (665, 1227632), (679, 1202320), (760, 1074178), (776, 1052030), (784, 1041295), (791, 1032080), (904, 903070), (931, 876880), (970, 841624), (980, 833036), (1064, 767270), (1130, 722456), (1330, 613816), (1358, 601160), (1520, 537089), (1552, 526015), (1582, 516040), (1808, 451535), (1843, 442960), (1862, 438440), (1940, 420812), (1960, 416518), (2128, 383635), (2147, 380240), (2260, 361228), (2660, 306908), (2716, 300580), (3164, 258020), (3395, 240464), (3686, 221480), (3724, 219220), (3880, 210406), (3920, 208259), (3955, 206416), (4294, 190120), (4520, 180614), (4655, 175376), (4753, 171760), (5320, 153454), (5432, 150290), (5537, 147440), (6328, 129010), (6790, 120232), (7372, 110740), (7448, 109610), (7760, 105203), (7910, 103208), (8588, 95060), (9040, 90307), (9215, 88592), (9310, 87688), (9506, 85880), (10640, 76727), (10735, 76048), (10864, 75145), (10961, 74480), (11074, 73720), (12656, 64505), (12901, 63280), (13580, 60116), (14744, 55370), (14896, 54805), (15029, 54320), (15820, 51604), (17176, 47530), (18430, 44296), (18620, 43844), (19012, 42940), (21470, 38024), (21922, 37240), (22148, 36860), (23765, 34352), (25802, 31640), (27160, 30058), (27685, 29488)]