641349120

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 240

約数和(自身を含む): 2141769168

約数和(自身を除く): 1500420048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 61, 64, 74, 80, 96, 111, 120, 122, 128, 148, 160, 183, 185, 192, 222, 240, 244, 256, 296, 305, 320, 366, 370, 384, 444, 480, 488, 512, 555, 592, 610, 640, 732, 740, 768, 888, 915, 960, 976, 1110, 1184, 1220, 1280, 1369, 1464, 1480, 1536, 1776, 1830, 1920, 1952, 2220, 2257, 2368, 2440, 2560, 2738, 2928, 2960, 3552, 3660, 3840, 3904, 4107, 4440, 4514, 4736, 4880, 5476, 5856, 5920, 6771, 6845, 7104, 7320, 7680, 7808, 8214, 8880, 9028, 9472, 9760, 10952, 11285, 11712, 11840, 13542, 13690, 14208, 14640, 15616, 16428, 17760, 18056, 18944, 19520, 20535, 21904, 22570, 23424, 23680, 27084, 27380, 28416, 29280, 31232, 32856, 33855, 35520, 36112, 39040, 41070, 43808, 45140, 46848, 47360, 54168, 54760, 56832, 58560, 65712, 67710, 71040, 72224, 78080, 82140, 83509, 87616, 90280, 93696, 94720, 108336, 109520, 117120, 131424, 135420, 142080, 144448, 156160, 164280, 167018, 175232, 180560, 216672, 219040, 234240, 250527, 262848, 270840, 284160, 288896, 328560, 334036, 350464, 361120, 417545, 433344, 438080, 468480, 501054, 525696, 541680, 577792, 657120, 668072, 700928, 722240, 835090, 866688, 876160, 1002108, 1051392, 1083360, 1155584, 1252635, 1314240, 1336144, 1444480, 1670180, 1733376, 1752320, 2004216, 2102784, 2166720, 2505270, 2628480, 2672288, 2888960, 3340360, 3466752, 3504640, 4008432, 4333440, 5010540, 5256960, 5344576, 5777920, 6680720, 8016864, 8666880, 10021080, 10513920, 10689152, 13361440, 16033728, 17333760, 20042160, 21378304, 26722880, 32067456, 40084320, 42756608, 53445760, 64134912, 80168640, 106891520, 128269824, 160337280, 213783040, 320674560, 641349120]

約数ペア:

[(1, 641349120), (2, 320674560), (3, 213783040), (4, 160337280), (5, 128269824), (6, 106891520), (8, 80168640), (10, 64134912), (12, 53445760), (15, 42756608), (16, 40084320), (20, 32067456), (24, 26722880), (30, 21378304), (32, 20042160), (37, 17333760), (40, 16033728), (48, 13361440), (60, 10689152), (61, 10513920), (64, 10021080), (74, 8666880), (80, 8016864), (96, 6680720), (111, 5777920), (120, 5344576), (122, 5256960), (128, 5010540), (148, 4333440), (160, 4008432), (183, 3504640), (185, 3466752), (192, 3340360), (222, 2888960), (240, 2672288), (244, 2628480), (256, 2505270), (296, 2166720), (305, 2102784), (320, 2004216), (366, 1752320), (370, 1733376), (384, 1670180), (444, 1444480), (480, 1336144), (488, 1314240), (512, 1252635), (555, 1155584), (592, 1083360), (610, 1051392), (640, 1002108), (732, 876160), (740, 866688), (768, 835090), (888, 722240), (915, 700928), (960, 668072), (976, 657120), (1110, 577792), (1184, 541680), (1220, 525696), (1280, 501054), (1369, 468480), (1464, 438080), (1480, 433344), (1536, 417545), (1776, 361120), (1830, 350464), (1920, 334036), (1952, 328560), (2220, 288896), (2257, 284160), (2368, 270840), (2440, 262848), (2560, 250527), (2738, 234240), (2928, 219040), (2960, 216672), (3552, 180560), (3660, 175232), (3840, 167018), (3904, 164280), (4107, 156160), (4440, 144448), (4514, 142080), (4736, 135420), (4880, 131424), (5476, 117120), (5856, 109520), (5920, 108336), (6771, 94720), (6845, 93696), (7104, 90280), (7320, 87616), (7680, 83509), (7808, 82140), (8214, 78080), (8880, 72224), (9028, 71040), (9472, 67710), (9760, 65712), (10952, 58560), (11285, 56832), (11712, 54760), (11840, 54168), (13542, 47360), (13690, 46848), (14208, 45140), (14640, 43808), (15616, 41070), (16428, 39040), (17760, 36112), (18056, 35520), (18944, 33855), (19520, 32856), (20535, 31232), (21904, 29280), (22570, 28416), (23424, 27380), (23680, 27084)]