320830720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:676

約数の個数: 144

約数和(自身を含む): 894192768

約数和(自身を除く): 573362048

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, 560, 587, 610, 640, 854, 896, 976, 1120, 1174, 1220, 1280, 1708, 1792, 1952, 2135, 2240, 2348, 2440, 2935, 3416, 3904, 4109, 4270, 4480, 4696, 4880, 5870, 6832, 7808, 8218, 8540, 8960, 9392, 9760, 11740, 13664, 15616, 16436, 17080, 18784, 19520, 20545, 23480, 27328, 32872, 34160, 35807, 37568, 39040, 41090, 46960, 54656, 65744, 68320, 71614, 75136, 78080, 82180, 93920, 109312, 131488, 136640, 143228, 150272, 164360, 179035, 187840, 250649, 262976, 273280, 286456, 328720, 358070, 375680, 501298, 525952, 546560, 572912, 657440, 716140, 751360, 1002596, 1051904, 1145824, 1253245, 1314880, 1432280, 2005192, 2291648, 2506490, 2629760, 2864560, 4010384, 4583296, 5012980, 5259520, 5729120, 8020768, 9166592, 10025960, 11458240, 16041536, 20051920, 22916480, 32083072, 40103840, 45832960, 64166144, 80207680, 160415360, 320830720]

約数ペア:

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