217902720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:583

約数の個数: 256

約数和(自身を含む): 820961280

約数和(自身を除く): 603058560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 160, 168, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 372, 384, 420, 434, 448, 465, 480, 496, 523, 560, 620, 640, 651, 672, 744, 840, 868, 896, 930, 960, 992, 1046, 1085, 1120, 1240, 1302, 1344, 1488, 1569, 1680, 1736, 1860, 1920, 1984, 2092, 2170, 2240, 2480, 2604, 2615, 2688, 2976, 3138, 3255, 3360, 3472, 3661, 3720, 3968, 4184, 4340, 4480, 4960, 5208, 5230, 5952, 6276, 6510, 6720, 6944, 7322, 7440, 7845, 8368, 8680, 9920, 10416, 10460, 10983, 11904, 12552, 13020, 13440, 13888, 14644, 14880, 15690, 16213, 16736, 17360, 18305, 19840, 20832, 20920, 21966, 25104, 26040, 27776, 29288, 29760, 31380, 32426, 33472, 34720, 36610, 41664, 41840, 43932, 48639, 50208, 52080, 54915, 58576, 59520, 62760, 64852, 66944, 69440, 73220, 81065, 83328, 83680, 87864, 97278, 100416, 104160, 109830, 113491, 117152, 125520, 129704, 138880, 146440, 162130, 167360, 175728, 194556, 200832, 208320, 219660, 226982, 234304, 243195, 251040, 259408, 292880, 324260, 334720, 340473, 351456, 389112, 416640, 439320, 453964, 468608, 486390, 502080, 518816, 567455, 585760, 648520, 680946, 702912, 778224, 878640, 907928, 972780, 1004160, 1037632, 1134910, 1171520, 1297040, 1361892, 1405824, 1556448, 1702365, 1757280, 1815856, 1945560, 2075264, 2269820, 2343040, 2594080, 2723784, 3112896, 3404730, 3514560, 3631712, 3891120, 4539640, 5188160, 5447568, 6225792, 6809460, 7029120, 7263424, 7782240, 9079280, 10376320, 10895136, 13618920, 14526848, 15564480, 18158560, 21790272, 27237840, 31128960, 36317120, 43580544, 54475680, 72634240, 108951360, 217902720]

約数ペア:

[(1, 217902720), (2, 108951360), (3, 72634240), (4, 54475680), (5, 43580544), (6, 36317120), (7, 31128960), (8, 27237840), (10, 21790272), (12, 18158560), (14, 15564480), (15, 14526848), (16, 13618920), (20, 10895136), (21, 10376320), (24, 9079280), (28, 7782240), (30, 7263424), (31, 7029120), (32, 6809460), (35, 6225792), (40, 5447568), (42, 5188160), (48, 4539640), (56, 3891120), (60, 3631712), (62, 3514560), (64, 3404730), (70, 3112896), (80, 2723784), (84, 2594080), (93, 2343040), (96, 2269820), (105, 2075264), (112, 1945560), (120, 1815856), (124, 1757280), (128, 1702365), (140, 1556448), (155, 1405824), (160, 1361892), (168, 1297040), (186, 1171520), (192, 1134910), (210, 1037632), (217, 1004160), (224, 972780), (240, 907928), (248, 878640), (280, 778224), (310, 702912), (320, 680946), (336, 648520), (372, 585760), (384, 567455), (420, 518816), (434, 502080), (448, 486390), (465, 468608), (480, 453964), (496, 439320), (523, 416640), (560, 389112), (620, 351456), (640, 340473), (651, 334720), (672, 324260), (744, 292880), (840, 259408), (868, 251040), (896, 243195), (930, 234304), (960, 226982), (992, 219660), (1046, 208320), (1085, 200832), (1120, 194556), (1240, 175728), (1302, 167360), (1344, 162130), (1488, 146440), (1569, 138880), (1680, 129704), (1736, 125520), (1860, 117152), (1920, 113491), (1984, 109830), (2092, 104160), (2170, 100416), (2240, 97278), (2480, 87864), (2604, 83680), (2615, 83328), (2688, 81065), (2976, 73220), (3138, 69440), (3255, 66944), (3360, 64852), (3472, 62760), (3661, 59520), (3720, 58576), (3968, 54915), (4184, 52080), (4340, 50208), (4480, 48639), (4960, 43932), (5208, 41840), (5230, 41664), (5952, 36610), (6276, 34720), (6510, 33472), (6720, 32426), (6944, 31380), (7322, 29760), (7440, 29288), (7845, 27776), (8368, 26040), (8680, 25104), (9920, 21966), (10416, 20920), (10460, 20832), (10983, 19840), (11904, 18305), (12552, 17360), (13020, 16736), (13440, 16213), (13888, 15690), (14644, 14880)]