161978880

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 320

約数和(自身を含む): 622245888

約数和(自身を除く): 460267008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 128, 131, 138, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 256, 262, 276, 280, 320, 322, 336, 345, 368, 384, 393, 420, 448, 460, 480, 483, 512, 524, 552, 560, 640, 644, 655, 672, 690, 736, 768, 786, 805, 840, 896, 917, 920, 960, 966, 1048, 1104, 1120, 1280, 1288, 1310, 1344, 1380, 1472, 1536, 1572, 1610, 1680, 1792, 1834, 1840, 1920, 1932, 1965, 2096, 2208, 2240, 2415, 2560, 2576, 2620, 2688, 2751, 2760, 2944, 3013, 3144, 3220, 3360, 3584, 3668, 3680, 3840, 3864, 3930, 4192, 4416, 4480, 4585, 4830, 5152, 5240, 5376, 5502, 5520, 5888, 6026, 6288, 6440, 6720, 7336, 7360, 7680, 7728, 7860, 8384, 8832, 8960, 9039, 9170, 9660, 10304, 10480, 10752, 11004, 11040, 11776, 12052, 12576, 12880, 13440, 13755, 14672, 14720, 15065, 15456, 15720, 16768, 17664, 17920, 18078, 18340, 19320, 20608, 20960, 21091, 22008, 22080, 24104, 25152, 25760, 26880, 27510, 29344, 29440, 30130, 30912, 31440, 33536, 35328, 36156, 36680, 38640, 41216, 41920, 42182, 44016, 44160, 45195, 48208, 50304, 51520, 53760, 55020, 58688, 58880, 60260, 61824, 62880, 63273, 67072, 72312, 73360, 77280, 82432, 83840, 84364, 88032, 88320, 90390, 96416, 100608, 103040, 105455, 110040, 117376, 120520, 123648, 125760, 126546, 144624, 146720, 154560, 167680, 168728, 176064, 176640, 180780, 192832, 201216, 206080, 210910, 220080, 234752, 241040, 247296, 251520, 253092, 289248, 293440, 309120, 316365, 335360, 337456, 352128, 361560, 385664, 412160, 421820, 440160, 469504, 482080, 503040, 506184, 578496, 586880, 618240, 632730, 674912, 704256, 723120, 771328, 843640, 880320, 964160, 1006080, 1012368, 1156992, 1173760, 1236480, 1265460, 1349824, 1408512, 1446240, 1542656, 1687280, 1760640, 1928320, 2024736, 2313984, 2347520, 2530920, 2699648, 2892480, 3374560, 3521280, 3856640, 4049472, 4627968, 5061840, 5399296, 5784960, 6749120, 7042560, 7713280, 8098944, 10123680, 10798592, 11569920, 13498240, 16197888, 20247360, 23139840, 26996480, 32395776, 40494720, 53992960, 80989440, 161978880]

約数ペア:

[(1, 161978880), (2, 80989440), (3, 53992960), (4, 40494720), (5, 32395776), (6, 26996480), (7, 23139840), (8, 20247360), (10, 16197888), (12, 13498240), (14, 11569920), (15, 10798592), (16, 10123680), (20, 8098944), (21, 7713280), (23, 7042560), (24, 6749120), (28, 5784960), (30, 5399296), (32, 5061840), (35, 4627968), (40, 4049472), (42, 3856640), (46, 3521280), (48, 3374560), (56, 2892480), (60, 2699648), (64, 2530920), (69, 2347520), (70, 2313984), (80, 2024736), (84, 1928320), (92, 1760640), (96, 1687280), (105, 1542656), (112, 1446240), (115, 1408512), (120, 1349824), (128, 1265460), (131, 1236480), (138, 1173760), (140, 1156992), (160, 1012368), (161, 1006080), (168, 964160), (184, 880320), (192, 843640), (210, 771328), (224, 723120), (230, 704256), (240, 674912), (256, 632730), (262, 618240), (276, 586880), (280, 578496), (320, 506184), (322, 503040), (336, 482080), (345, 469504), (368, 440160), (384, 421820), (393, 412160), (420, 385664), (448, 361560), (460, 352128), (480, 337456), (483, 335360), (512, 316365), (524, 309120), (552, 293440), (560, 289248), (640, 253092), (644, 251520), (655, 247296), (672, 241040), (690, 234752), (736, 220080), (768, 210910), (786, 206080), (805, 201216), (840, 192832), (896, 180780), (917, 176640), (920, 176064), (960, 168728), (966, 167680), (1048, 154560), (1104, 146720), (1120, 144624), (1280, 126546), (1288, 125760), (1310, 123648), (1344, 120520), (1380, 117376), (1472, 110040), (1536, 105455), (1572, 103040), (1610, 100608), (1680, 96416), (1792, 90390), (1834, 88320), (1840, 88032), (1920, 84364), (1932, 83840), (1965, 82432), (2096, 77280), (2208, 73360), (2240, 72312), (2415, 67072), (2560, 63273), (2576, 62880), (2620, 61824), (2688, 60260), (2751, 58880), (2760, 58688), (2944, 55020), (3013, 53760), (3144, 51520), (3220, 50304), (3360, 48208), (3584, 45195), (3668, 44160), (3680, 44016), (3840, 42182), (3864, 41920), (3930, 41216), (4192, 38640), (4416, 36680), (4480, 36156), (4585, 35328), (4830, 33536), (5152, 31440), (5240, 30912), (5376, 30130), (5502, 29440), (5520, 29344), (5888, 27510), (6026, 26880), (6288, 25760), (6440, 25152), (6720, 24104), (7336, 22080), (7360, 22008), (7680, 21091), (7728, 20960), (7860, 20608), (8384, 19320), (8832, 18340), (8960, 18078), (9039, 17920), (9170, 17664), (9660, 16768), (10304, 15720), (10480, 15456), (10752, 15065), (11004, 14720), (11040, 14672), (11776, 13755), (12052, 13440), (12576, 12880)]