990647280

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{65519}}^1$

素因数の和:65548

約数の個数: 160

約数和(自身を含む): 3899750400

約数和(自身を除く): 2909103120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 65519, 131038, 196557, 262076, 327595, 393114, 458633, 524152, 589671, 655190, 786228, 917266, 982785, 1048304, 1179342, 1310380, 1375899, 1572456, 1769013, 1834532, 1965570, 2293165, 2358684, 2620760, 2751798, 2948355, 3144912, 3538026, 3669064, 3931140, 4127697, 4586330, 4717368, 5241520, 5503596, 5896710, 6879495, 7076052, 7338128, 7862280, 8255394, 8845065, 9172660, 9434736, 11007192, 11793420, 12383091, 13758990, 14152104, 15724560, 16510788, 17690130, 18345320, 20638485, 22014384, 23586840, 24766182, 27517980, 28304208, 33021576, 35380260, 36690640, 41276970, 47173680, 49532364, 55035960, 61915455, 66043152, 70760520, 82553940, 99064728, 110071920, 123830910, 141521040, 165107880, 198129456, 247661820, 330215760, 495323640, 990647280]

約数ペア:

[(1, 990647280), (2, 495323640), (3, 330215760), (4, 247661820), (5, 198129456), (6, 165107880), (7, 141521040), (8, 123830910), (9, 110071920), (10, 99064728), (12, 82553940), (14, 70760520), (15, 66043152), (16, 61915455), (18, 55035960), (20, 49532364), (21, 47173680), (24, 41276970), (27, 36690640), (28, 35380260), (30, 33021576), (35, 28304208), (36, 27517980), (40, 24766182), (42, 23586840), (45, 22014384), (48, 20638485), (54, 18345320), (56, 17690130), (60, 16510788), (63, 15724560), (70, 14152104), (72, 13758990), (80, 12383091), (84, 11793420), (90, 11007192), (105, 9434736), (108, 9172660), (112, 8845065), (120, 8255394), (126, 7862280), (135, 7338128), (140, 7076052), (144, 6879495), (168, 5896710), (180, 5503596), (189, 5241520), (210, 4717368), (216, 4586330), (240, 4127697), (252, 3931140), (270, 3669064), (280, 3538026), (315, 3144912), (336, 2948355), (360, 2751798), (378, 2620760), (420, 2358684), (432, 2293165), (504, 1965570), (540, 1834532), (560, 1769013), (630, 1572456), (720, 1375899), (756, 1310380), (840, 1179342), (945, 1048304), (1008, 982785), (1080, 917266), (1260, 786228), (1512, 655190), (1680, 589671), (1890, 524152), (2160, 458633), (2520, 393114), (3024, 327595), (3780, 262076), (5040, 196557), (7560, 131038), (15120, 65519)]