664186180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{373}}^1$

素因数の和:498

約数の個数: 144

約数和(自身を含む): 1719083520

約数和(自身を除く): 1054897340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 79, 92, 98, 115, 140, 158, 161, 196, 230, 245, 316, 322, 373, 395, 460, 490, 553, 644, 746, 790, 805, 980, 1106, 1127, 1492, 1580, 1610, 1817, 1865, 2212, 2254, 2611, 2765, 3220, 3634, 3730, 3871, 4508, 5222, 5530, 5635, 7268, 7460, 7742, 8579, 9085, 10444, 11060, 11270, 12719, 13055, 15484, 17158, 18170, 18277, 19355, 22540, 25438, 26110, 29467, 34316, 36340, 36554, 38710, 42895, 50876, 52220, 58934, 60053, 63595, 73108, 77420, 85790, 89033, 91385, 117868, 120106, 127190, 147335, 171580, 178066, 182770, 206269, 240212, 254380, 294670, 300265, 356132, 365540, 412538, 420371, 445165, 589340, 600530, 677741, 825076, 840742, 890330, 1031345, 1201060, 1355482, 1443883, 1681484, 1780660, 2062690, 2101855, 2710964, 2887766, 3388705, 4125380, 4203710, 4744187, 5775532, 6777410, 7219415, 8407420, 9488374, 13554820, 14438830, 18976748, 23720935, 28877660, 33209309, 47441870, 66418618, 94883740, 132837236, 166046545, 332093090, 664186180]

約数ペア:

[(1, 664186180), (2, 332093090), (4, 166046545), (5, 132837236), (7, 94883740), (10, 66418618), (14, 47441870), (20, 33209309), (23, 28877660), (28, 23720935), (35, 18976748), (46, 14438830), (49, 13554820), (70, 9488374), (79, 8407420), (92, 7219415), (98, 6777410), (115, 5775532), (140, 4744187), (158, 4203710), (161, 4125380), (196, 3388705), (230, 2887766), (245, 2710964), (316, 2101855), (322, 2062690), (373, 1780660), (395, 1681484), (460, 1443883), (490, 1355482), (553, 1201060), (644, 1031345), (746, 890330), (790, 840742), (805, 825076), (980, 677741), (1106, 600530), (1127, 589340), (1492, 445165), (1580, 420371), (1610, 412538), (1817, 365540), (1865, 356132), (2212, 300265), (2254, 294670), (2611, 254380), (2765, 240212), (3220, 206269), (3634, 182770), (3730, 178066), (3871, 171580), (4508, 147335), (5222, 127190), (5530, 120106), (5635, 117868), (7268, 91385), (7460, 89033), (7742, 85790), (8579, 77420), (9085, 73108), (10444, 63595), (11060, 60053), (11270, 58934), (12719, 52220), (13055, 50876), (15484, 42895), (17158, 38710), (18170, 36554), (18277, 36340), (19355, 34316), (22540, 29467), (25438, 26110)]