641661440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:678

約数の個数: 160

約数和(自身を含む): 1790135424

約数和(自身を除く): 1148473984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 244, 256, 280, 305, 320, 427, 448, 488, 512, 560, 587, 610, 640, 854, 896, 976, 1120, 1174, 1220, 1280, 1708, 1792, 1952, 2135, 2240, 2348, 2440, 2560, 2935, 3416, 3584, 3904, 4109, 4270, 4480, 4696, 4880, 5870, 6832, 7808, 8218, 8540, 8960, 9392, 9760, 11740, 13664, 15616, 16436, 17080, 17920, 18784, 19520, 20545, 23480, 27328, 31232, 32872, 34160, 35807, 37568, 39040, 41090, 46960, 54656, 65744, 68320, 71614, 75136, 78080, 82180, 93920, 109312, 131488, 136640, 143228, 150272, 156160, 164360, 179035, 187840, 218624, 250649, 262976, 273280, 286456, 300544, 328720, 358070, 375680, 501298, 525952, 546560, 572912, 657440, 716140, 751360, 1002596, 1051904, 1093120, 1145824, 1253245, 1314880, 1432280, 1502720, 2005192, 2103808, 2291648, 2506490, 2629760, 2864560, 4010384, 4583296, 5012980, 5259520, 5729120, 8020768, 9166592, 10025960, 10519040, 11458240, 16041536, 18333184, 20051920, 22916480, 32083072, 40103840, 45832960, 64166144, 80207680, 91665920, 128332288, 160415360, 320830720, 641661440]

約数ペア:

[(1, 641661440), (2, 320830720), (4, 160415360), (5, 128332288), (7, 91665920), (8, 80207680), (10, 64166144), (14, 45832960), (16, 40103840), (20, 32083072), (28, 22916480), (32, 20051920), (35, 18333184), (40, 16041536), (56, 11458240), (61, 10519040), (64, 10025960), (70, 9166592), (80, 8020768), (112, 5729120), (122, 5259520), (128, 5012980), (140, 4583296), (160, 4010384), (224, 2864560), (244, 2629760), (256, 2506490), (280, 2291648), (305, 2103808), (320, 2005192), (427, 1502720), (448, 1432280), (488, 1314880), (512, 1253245), (560, 1145824), (587, 1093120), (610, 1051904), (640, 1002596), (854, 751360), (896, 716140), (976, 657440), (1120, 572912), (1174, 546560), (1220, 525952), (1280, 501298), (1708, 375680), (1792, 358070), (1952, 328720), (2135, 300544), (2240, 286456), (2348, 273280), (2440, 262976), (2560, 250649), (2935, 218624), (3416, 187840), (3584, 179035), (3904, 164360), (4109, 156160), (4270, 150272), (4480, 143228), (4696, 136640), (4880, 131488), (5870, 109312), (6832, 93920), (7808, 82180), (8218, 78080), (8540, 75136), (8960, 71614), (9392, 68320), (9760, 65744), (11740, 54656), (13664, 46960), (15616, 41090), (16436, 39040), (17080, 37568), (17920, 35807), (18784, 34160), (19520, 32872), (20545, 31232), (23480, 27328)]