311998680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:823

約数の個数: 288

約数和(自身を含む): 1232431200

約数和(自身を除く): 920432520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 49, 56, 60, 63, 69, 70, 72, 84, 90, 92, 98, 105, 115, 120, 126, 138, 140, 147, 161, 168, 180, 184, 196, 207, 210, 230, 245, 252, 276, 280, 294, 315, 322, 345, 360, 392, 414, 420, 441, 460, 483, 490, 504, 552, 588, 630, 644, 690, 735, 769, 805, 828, 840, 882, 920, 966, 980, 1035, 1127, 1176, 1260, 1288, 1380, 1449, 1470, 1538, 1610, 1656, 1764, 1932, 1960, 2070, 2205, 2254, 2307, 2415, 2520, 2760, 2898, 2940, 3076, 3220, 3381, 3528, 3845, 3864, 4140, 4410, 4508, 4614, 4830, 5383, 5635, 5796, 5880, 6152, 6440, 6762, 6921, 7245, 7690, 8280, 8820, 9016, 9228, 9660, 10143, 10766, 11270, 11535, 11592, 13524, 13842, 14490, 15380, 16149, 16905, 17640, 17687, 18456, 19320, 20286, 21532, 22540, 23070, 26915, 27048, 27684, 28980, 30760, 32298, 33810, 34605, 35374, 37681, 40572, 43064, 45080, 46140, 48447, 50715, 53061, 53830, 55368, 57960, 64596, 67620, 69210, 70748, 75362, 80745, 81144, 88435, 92280, 96894, 101430, 106122, 107660, 113043, 123809, 129192, 135240, 138420, 141496, 150724, 159183, 161490, 176870, 188405, 193788, 202860, 212244, 215320, 226086, 242235, 247618, 265305, 276840, 301448, 318366, 322980, 339129, 353740, 371427, 376810, 387576, 405720, 424488, 452172, 484470, 495236, 530610, 565215, 619045, 636732, 645960, 678258, 707480, 742854, 753620, 795915, 866663, 904344, 968940, 990472, 1061220, 1114281, 1130430, 1238090, 1273464, 1356516, 1485708, 1507240, 1591830, 1695645, 1733326, 1857135, 1937880, 2122440, 2228562, 2260860, 2476180, 2599989, 2713032, 2971416, 3183660, 3391290, 3466652, 3714270, 4333315, 4457124, 4521720, 4952360, 5199978, 5571405, 6367320, 6782580, 6933304, 7428540, 7799967, 8666630, 8914248, 10399956, 11142810, 12999945, 13565160, 14857080, 15599934, 17333260, 20799912, 22285620, 25999890, 31199868, 34666520, 38999835, 44571240, 51999780, 62399736, 77999670, 103999560, 155999340, 311998680]

約数ペア:

[(1, 311998680), (2, 155999340), (3, 103999560), (4, 77999670), (5, 62399736), (6, 51999780), (7, 44571240), (8, 38999835), (9, 34666520), (10, 31199868), (12, 25999890), (14, 22285620), (15, 20799912), (18, 17333260), (20, 15599934), (21, 14857080), (23, 13565160), (24, 12999945), (28, 11142810), (30, 10399956), (35, 8914248), (36, 8666630), (40, 7799967), (42, 7428540), (45, 6933304), (46, 6782580), (49, 6367320), (56, 5571405), (60, 5199978), (63, 4952360), (69, 4521720), (70, 4457124), (72, 4333315), (84, 3714270), (90, 3466652), (92, 3391290), (98, 3183660), (105, 2971416), (115, 2713032), (120, 2599989), (126, 2476180), (138, 2260860), (140, 2228562), (147, 2122440), (161, 1937880), (168, 1857135), (180, 1733326), (184, 1695645), (196, 1591830), (207, 1507240), (210, 1485708), (230, 1356516), (245, 1273464), (252, 1238090), (276, 1130430), (280, 1114281), (294, 1061220), (315, 990472), (322, 968940), (345, 904344), (360, 866663), (392, 795915), (414, 753620), (420, 742854), (441, 707480), (460, 678258), (483, 645960), (490, 636732), (504, 619045), (552, 565215), (588, 530610), (630, 495236), (644, 484470), (690, 452172), (735, 424488), (769, 405720), (805, 387576), (828, 376810), (840, 371427), (882, 353740), (920, 339129), (966, 322980), (980, 318366), (1035, 301448), (1127, 276840), (1176, 265305), (1260, 247618), (1288, 242235), (1380, 226086), (1449, 215320), (1470, 212244), (1538, 202860), (1610, 193788), (1656, 188405), (1764, 176870), (1932, 161490), (1960, 159183), (2070, 150724), (2205, 141496), (2254, 138420), (2307, 135240), (2415, 129192), (2520, 123809), (2760, 113043), (2898, 107660), (2940, 106122), (3076, 101430), (3220, 96894), (3381, 92280), (3528, 88435), (3845, 81144), (3864, 80745), (4140, 75362), (4410, 70748), (4508, 69210), (4614, 67620), (4830, 64596), (5383, 57960), (5635, 55368), (5796, 53830), (5880, 53061), (6152, 50715), (6440, 48447), (6762, 46140), (6921, 45080), (7245, 43064), (7690, 40572), (8280, 37681), (8820, 35374), (9016, 34605), (9228, 33810), (9660, 32298), (10143, 30760), (10766, 28980), (11270, 27684), (11535, 27048), (11592, 26915), (13524, 23070), (13842, 22540), (14490, 21532), (15380, 20286), (16149, 19320), (16905, 18456), (17640, 17687)]