208007520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2053

約数の個数: 192

約数和(自身を含む): 773369856

約数和(自身を除く): 565362336

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, 70, 80, 84, 93, 96, 105, 112, 120, 124, 140, 155, 160, 168, 186, 210, 217, 224, 240, 248, 280, 310, 336, 372, 420, 434, 465, 480, 496, 560, 620, 651, 672, 744, 840, 868, 930, 992, 1085, 1120, 1240, 1302, 1488, 1680, 1736, 1860, 1997, 2170, 2480, 2604, 2976, 3255, 3360, 3472, 3720, 3994, 4340, 4960, 5208, 5991, 6510, 6944, 7440, 7988, 8680, 9985, 10416, 11982, 13020, 13979, 14880, 15976, 17360, 19970, 20832, 23964, 26040, 27958, 29955, 31952, 34720, 39940, 41937, 47928, 52080, 55916, 59910, 61907, 63904, 69895, 79880, 83874, 95856, 104160, 111832, 119820, 123814, 139790, 159760, 167748, 185721, 191712, 209685, 223664, 239640, 247628, 279580, 309535, 319520, 335496, 371442, 419370, 433349, 447328, 479280, 495256, 559160, 619070, 670992, 742884, 838740, 866698, 928605, 958560, 990512, 1118320, 1238140, 1300047, 1341984, 1485768, 1677480, 1733396, 1857210, 1981024, 2166745, 2236640, 2476280, 2600094, 2971536, 3354960, 3466792, 3714420, 4333490, 4952560, 5200188, 5943072, 6500235, 6709920, 6933584, 7428840, 8666980, 9905120, 10400376, 13000470, 13867168, 14857680, 17333960, 20800752, 26000940, 29715360, 34667920, 41601504, 52001880, 69335840, 104003760, 208007520]

約数ペア:

[(1, 208007520), (2, 104003760), (3, 69335840), (4, 52001880), (5, 41601504), (6, 34667920), (7, 29715360), (8, 26000940), (10, 20800752), (12, 17333960), (14, 14857680), (15, 13867168), (16, 13000470), (20, 10400376), (21, 9905120), (24, 8666980), (28, 7428840), (30, 6933584), (31, 6709920), (32, 6500235), (35, 5943072), (40, 5200188), (42, 4952560), (48, 4333490), (56, 3714420), (60, 3466792), (62, 3354960), (70, 2971536), (80, 2600094), (84, 2476280), (93, 2236640), (96, 2166745), (105, 1981024), (112, 1857210), (120, 1733396), (124, 1677480), (140, 1485768), (155, 1341984), (160, 1300047), (168, 1238140), (186, 1118320), (210, 990512), (217, 958560), (224, 928605), (240, 866698), (248, 838740), (280, 742884), (310, 670992), (336, 619070), (372, 559160), (420, 495256), (434, 479280), (465, 447328), (480, 433349), (496, 419370), (560, 371442), (620, 335496), (651, 319520), (672, 309535), (744, 279580), (840, 247628), (868, 239640), (930, 223664), (992, 209685), (1085, 191712), (1120, 185721), (1240, 167748), (1302, 159760), (1488, 139790), (1680, 123814), (1736, 119820), (1860, 111832), (1997, 104160), (2170, 95856), (2480, 83874), (2604, 79880), (2976, 69895), (3255, 63904), (3360, 61907), (3472, 59910), (3720, 55916), (3994, 52080), (4340, 47928), (4960, 41937), (5208, 39940), (5991, 34720), (6510, 31952), (6944, 29955), (7440, 27958), (7988, 26040), (8680, 23964), (9985, 20832), (10416, 19970), (11982, 17360), (13020, 15976), (13979, 14880)]