217105920

素因数分解:

$2^9\times 3^5\times 5^1\times {\mathrm{349}}^1$

素因数の和:387

約数の個数: 240

約数和(自身を含む): 781981200

約数和(自身を除く): 564875280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 349, 360, 384, 405, 432, 480, 486, 512, 540, 576, 640, 648, 698, 720, 768, 810, 864, 960, 972, 1047, 1080, 1152, 1215, 1280, 1296, 1396, 1440, 1536, 1620, 1728, 1745, 1920, 1944, 2094, 2160, 2304, 2430, 2560, 2592, 2792, 2880, 3141, 3240, 3456, 3490, 3840, 3888, 4188, 4320, 4608, 4860, 5184, 5235, 5584, 5760, 6282, 6480, 6912, 6980, 7680, 7776, 8376, 8640, 9423, 9720, 10368, 10470, 11168, 11520, 12564, 12960, 13824, 13960, 15552, 15705, 16752, 17280, 18846, 19440, 20736, 20940, 22336, 23040, 25128, 25920, 27920, 28269, 31104, 31410, 33504, 34560, 37692, 38880, 41472, 41880, 44672, 47115, 50256, 51840, 55840, 56538, 62208, 62820, 67008, 69120, 75384, 77760, 83760, 84807, 89344, 94230, 100512, 103680, 111680, 113076, 124416, 125640, 134016, 141345, 150768, 155520, 167520, 169614, 178688, 188460, 201024, 207360, 223360, 226152, 251280, 268032, 282690, 301536, 311040, 335040, 339228, 376920, 402048, 424035, 446720, 452304, 502560, 536064, 565380, 603072, 622080, 670080, 678456, 753840, 804096, 848070, 893440, 904608, 1005120, 1130760, 1206144, 1340160, 1356912, 1507680, 1608192, 1696140, 1809216, 2010240, 2261520, 2412288, 2680320, 2713824, 3015360, 3392280, 3618432, 4020480, 4523040, 4824576, 5427648, 6030720, 6784560, 7236864, 8040960, 9046080, 10855296, 12061440, 13569120, 14473728, 18092160, 21710592, 24122880, 27138240, 36184320, 43421184, 54276480, 72368640, 108552960, 217105920]

約数ペア:

[(1, 217105920), (2, 108552960), (3, 72368640), (4, 54276480), (5, 43421184), (6, 36184320), (8, 27138240), (9, 24122880), (10, 21710592), (12, 18092160), (15, 14473728), (16, 13569120), (18, 12061440), (20, 10855296), (24, 9046080), (27, 8040960), (30, 7236864), (32, 6784560), (36, 6030720), (40, 5427648), (45, 4824576), (48, 4523040), (54, 4020480), (60, 3618432), (64, 3392280), (72, 3015360), (80, 2713824), (81, 2680320), (90, 2412288), (96, 2261520), (108, 2010240), (120, 1809216), (128, 1696140), (135, 1608192), (144, 1507680), (160, 1356912), (162, 1340160), (180, 1206144), (192, 1130760), (216, 1005120), (240, 904608), (243, 893440), (256, 848070), (270, 804096), (288, 753840), (320, 678456), (324, 670080), (349, 622080), (360, 603072), (384, 565380), (405, 536064), (432, 502560), (480, 452304), (486, 446720), (512, 424035), (540, 402048), (576, 376920), (640, 339228), (648, 335040), (698, 311040), (720, 301536), (768, 282690), (810, 268032), (864, 251280), (960, 226152), (972, 223360), (1047, 207360), (1080, 201024), (1152, 188460), (1215, 178688), (1280, 169614), (1296, 167520), (1396, 155520), (1440, 150768), (1536, 141345), (1620, 134016), (1728, 125640), (1745, 124416), (1920, 113076), (1944, 111680), (2094, 103680), (2160, 100512), (2304, 94230), (2430, 89344), (2560, 84807), (2592, 83760), (2792, 77760), (2880, 75384), (3141, 69120), (3240, 67008), (3456, 62820), (3490, 62208), (3840, 56538), (3888, 55840), (4188, 51840), (4320, 50256), (4608, 47115), (4860, 44672), (5184, 41880), (5235, 41472), (5584, 38880), (5760, 37692), (6282, 34560), (6480, 33504), (6912, 31410), (6980, 31104), (7680, 28269), (7776, 27920), (8376, 25920), (8640, 25128), (9423, 23040), (9720, 22336), (10368, 20940), (10470, 20736), (11168, 19440), (11520, 18846), (12564, 17280), (12960, 16752), (13824, 15705), (13960, 15552)]