20491415040

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{5347}}^1$

素因数の和:5872

約数の個数: 160

約数和(自身を含む): 65652048000

約数和(自身を除く): 45160632960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 499, 512, 640, 768, 960, 998, 1280, 1497, 1536, 1920, 1996, 2495, 2560, 2994, 3840, 3992, 4990, 5347, 5988, 7485, 7680, 7984, 9980, 10694, 11976, 14970, 15968, 16041, 19960, 21388, 23952, 26735, 29940, 31936, 32082, 39920, 42776, 47904, 53470, 59880, 63872, 64164, 79840, 80205, 85552, 95808, 106940, 119760, 127744, 128328, 159680, 160410, 171104, 191616, 213880, 239520, 255488, 256656, 319360, 320820, 342208, 383232, 427760, 479040, 513312, 638720, 641640, 684416, 766464, 855520, 958080, 1026624, 1277440, 1283280, 1368832, 1711040, 1916160, 2053248, 2566560, 2668153, 2737664, 3422080, 3832320, 4106496, 5133120, 5336306, 6844160, 8004459, 8212992, 10266240, 10672612, 13340765, 13688320, 16008918, 20532480, 21345224, 26681530, 32017836, 40022295, 41064960, 42690448, 53363060, 64035672, 80044590, 85380896, 106726120, 128071344, 160089180, 170761792, 213452240, 256142688, 320178360, 341523584, 426904480, 512285376, 640356720, 683047168, 853808960, 1024570752, 1280713440, 1366094336, 1707617920, 2049141504, 2561426880, 3415235840, 4098283008, 5122853760, 6830471680, 10245707520, 20491415040]

約数ペア:

[(1, 20491415040), (2, 10245707520), (3, 6830471680), (4, 5122853760), (5, 4098283008), (6, 3415235840), (8, 2561426880), (10, 2049141504), (12, 1707617920), (15, 1366094336), (16, 1280713440), (20, 1024570752), (24, 853808960), (30, 683047168), (32, 640356720), (40, 512285376), (48, 426904480), (60, 341523584), (64, 320178360), (80, 256142688), (96, 213452240), (120, 170761792), (128, 160089180), (160, 128071344), (192, 106726120), (240, 85380896), (256, 80044590), (320, 64035672), (384, 53363060), (480, 42690448), (499, 41064960), (512, 40022295), (640, 32017836), (768, 26681530), (960, 21345224), (998, 20532480), (1280, 16008918), (1497, 13688320), (1536, 13340765), (1920, 10672612), (1996, 10266240), (2495, 8212992), (2560, 8004459), (2994, 6844160), (3840, 5336306), (3992, 5133120), (4990, 4106496), (5347, 3832320), (5988, 3422080), (7485, 2737664), (7680, 2668153), (7984, 2566560), (9980, 2053248), (10694, 1916160), (11976, 1711040), (14970, 1368832), (15968, 1283280), (16041, 1277440), (19960, 1026624), (21388, 958080), (23952, 855520), (26735, 766464), (29940, 684416), (31936, 641640), (32082, 638720), (39920, 513312), (42776, 479040), (47904, 427760), (53470, 383232), (59880, 342208), (63872, 320820), (64164, 319360), (79840, 256656), (80205, 255488), (85552, 239520), (95808, 213880), (106940, 191616), (119760, 171104), (127744, 160410), (128328, 159680)]