81689520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 240

約数和(自身を含む): 290918880

約数和(自身を除く): 209229360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 33, 40, 44, 48, 55, 58, 60, 66, 80, 87, 88, 97, 110, 116, 120, 121, 132, 145, 165, 174, 176, 194, 220, 232, 240, 242, 264, 290, 291, 319, 330, 348, 363, 388, 435, 440, 464, 484, 485, 528, 580, 582, 605, 638, 660, 696, 726, 776, 870, 880, 957, 968, 970, 1067, 1160, 1164, 1210, 1276, 1320, 1392, 1452, 1455, 1552, 1595, 1740, 1815, 1914, 1936, 1940, 2134, 2320, 2328, 2420, 2552, 2640, 2813, 2904, 2910, 3190, 3201, 3480, 3509, 3630, 3828, 3880, 4268, 4656, 4785, 4840, 5104, 5335, 5626, 5808, 5820, 6380, 6402, 6960, 7018, 7260, 7656, 7760, 8439, 8536, 9570, 9680, 10527, 10670, 11252, 11640, 11737, 12760, 12804, 14036, 14065, 14520, 15312, 16005, 16878, 17072, 17545, 19140, 21054, 21340, 22504, 23280, 23474, 25520, 25608, 28072, 28130, 29040, 30943, 32010, 33756, 35090, 35211, 38280, 42108, 42195, 42680, 45008, 46948, 51216, 52635, 56144, 56260, 58685, 61886, 64020, 67512, 70180, 70422, 76560, 84216, 84390, 85360, 92829, 93896, 105270, 112520, 117370, 123772, 128040, 135024, 140360, 140844, 154715, 168432, 168780, 176055, 185658, 187792, 210540, 225040, 234740, 247544, 256080, 280720, 281688, 309430, 337560, 340373, 352110, 371316, 421080, 464145, 469480, 495088, 563376, 618860, 675120, 680746, 704220, 742632, 842160, 928290, 938960, 1021119, 1237720, 1361492, 1408440, 1485264, 1701865, 1856580, 2042238, 2475440, 2722984, 2816880, 3403730, 3713160, 4084476, 5105595, 5445968, 6807460, 7426320, 8168952, 10211190, 13614920, 16337904, 20422380, 27229840, 40844760, 81689520]

約数ペア:

[(1, 81689520), (2, 40844760), (3, 27229840), (4, 20422380), (5, 16337904), (6, 13614920), (8, 10211190), (10, 8168952), (11, 7426320), (12, 6807460), (15, 5445968), (16, 5105595), (20, 4084476), (22, 3713160), (24, 3403730), (29, 2816880), (30, 2722984), (33, 2475440), (40, 2042238), (44, 1856580), (48, 1701865), (55, 1485264), (58, 1408440), (60, 1361492), (66, 1237720), (80, 1021119), (87, 938960), (88, 928290), (97, 842160), (110, 742632), (116, 704220), (120, 680746), (121, 675120), (132, 618860), (145, 563376), (165, 495088), (174, 469480), (176, 464145), (194, 421080), (220, 371316), (232, 352110), (240, 340373), (242, 337560), (264, 309430), (290, 281688), (291, 280720), (319, 256080), (330, 247544), (348, 234740), (363, 225040), (388, 210540), (435, 187792), (440, 185658), (464, 176055), (484, 168780), (485, 168432), (528, 154715), (580, 140844), (582, 140360), (605, 135024), (638, 128040), (660, 123772), (696, 117370), (726, 112520), (776, 105270), (870, 93896), (880, 92829), (957, 85360), (968, 84390), (970, 84216), (1067, 76560), (1160, 70422), (1164, 70180), (1210, 67512), (1276, 64020), (1320, 61886), (1392, 58685), (1452, 56260), (1455, 56144), (1552, 52635), (1595, 51216), (1740, 46948), (1815, 45008), (1914, 42680), (1936, 42195), (1940, 42108), (2134, 38280), (2320, 35211), (2328, 35090), (2420, 33756), (2552, 32010), (2640, 30943), (2813, 29040), (2904, 28130), (2910, 28072), (3190, 25608), (3201, 25520), (3480, 23474), (3509, 23280), (3630, 22504), (3828, 21340), (3880, 21054), (4268, 19140), (4656, 17545), (4785, 17072), (4840, 16878), (5104, 16005), (5335, 15312), (5626, 14520), (5808, 14065), (5820, 14036), (6380, 12804), (6402, 12760), (6960, 11737), (7018, 11640), (7260, 11252), (7656, 10670), (7760, 10527), (8439, 9680), (8536, 9570)]