1971991008

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1439

約数の個数: 240

約数和(自身を含む): 6395636016

約数和(自身を除く): 4423645008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 43, 48, 52, 54, 72, 78, 81, 86, 96, 104, 108, 117, 129, 144, 156, 162, 172, 208, 216, 234, 258, 288, 312, 324, 344, 351, 387, 416, 432, 468, 516, 559, 624, 648, 688, 702, 774, 864, 936, 1032, 1053, 1118, 1161, 1248, 1296, 1361, 1376, 1404, 1548, 1677, 1872, 2064, 2106, 2236, 2322, 2592, 2722, 2808, 3096, 3354, 3483, 3744, 4083, 4128, 4212, 4472, 4644, 5031, 5444, 5616, 6192, 6708, 6966, 8166, 8424, 8944, 9288, 10062, 10888, 11232, 12249, 12384, 13416, 13932, 15093, 16332, 16848, 17693, 17888, 18576, 20124, 21776, 24498, 26832, 27864, 30186, 32664, 33696, 35386, 36747, 37152, 40248, 43552, 45279, 48996, 53079, 53664, 55728, 58523, 60372, 65328, 70772, 73494, 80496, 90558, 97992, 106158, 110241, 111456, 117046, 120744, 130656, 141544, 146988, 159237, 160992, 175569, 181116, 195984, 212316, 220482, 234092, 241488, 283088, 293976, 318474, 351138, 362232, 391968, 424632, 440964, 468184, 477711, 482976, 526707, 566176, 587952, 636948, 702276, 724464, 760799, 849264, 881928, 936368, 955422, 1053414, 1175904, 1273896, 1404552, 1433133, 1448928, 1521598, 1580121, 1698528, 1763856, 1872736, 1910844, 2106828, 2282397, 2547792, 2809104, 2866266, 3043196, 3160242, 3527712, 3821688, 4213656, 4564794, 4740363, 5095584, 5618208, 5732532, 6086392, 6320484, 6847191, 7643376, 8427312, 9129588, 9480726, 11465064, 12172784, 12640968, 13694382, 15286752, 16854624, 18259176, 18961452, 20541573, 22930128, 24345568, 25281936, 27388764, 36518352, 37922904, 41083146, 45860256, 50563872, 54777528, 61624719, 73036704, 75845808, 82166292, 109555056, 123249438, 151691616, 164332584, 219110112, 246498876, 328665168, 492997752, 657330336, 985995504, 1971991008]

約数ペア:

[(1, 1971991008), (2, 985995504), (3, 657330336), (4, 492997752), (6, 328665168), (8, 246498876), (9, 219110112), (12, 164332584), (13, 151691616), (16, 123249438), (18, 109555056), (24, 82166292), (26, 75845808), (27, 73036704), (32, 61624719), (36, 54777528), (39, 50563872), (43, 45860256), (48, 41083146), (52, 37922904), (54, 36518352), (72, 27388764), (78, 25281936), (81, 24345568), (86, 22930128), (96, 20541573), (104, 18961452), (108, 18259176), (117, 16854624), (129, 15286752), (144, 13694382), (156, 12640968), (162, 12172784), (172, 11465064), (208, 9480726), (216, 9129588), (234, 8427312), (258, 7643376), (288, 6847191), (312, 6320484), (324, 6086392), (344, 5732532), (351, 5618208), (387, 5095584), (416, 4740363), (432, 4564794), (468, 4213656), (516, 3821688), (559, 3527712), (624, 3160242), (648, 3043196), (688, 2866266), (702, 2809104), (774, 2547792), (864, 2282397), (936, 2106828), (1032, 1910844), (1053, 1872736), (1118, 1763856), (1161, 1698528), (1248, 1580121), (1296, 1521598), (1361, 1448928), (1376, 1433133), (1404, 1404552), (1548, 1273896), (1677, 1175904), (1872, 1053414), (2064, 955422), (2106, 936368), (2236, 881928), (2322, 849264), (2592, 760799), (2722, 724464), (2808, 702276), (3096, 636948), (3354, 587952), (3483, 566176), (3744, 526707), (4083, 482976), (4128, 477711), (4212, 468184), (4472, 440964), (4644, 424632), (5031, 391968), (5444, 362232), (5616, 351138), (6192, 318474), (6708, 293976), (6966, 283088), (8166, 241488), (8424, 234092), (8944, 220482), (9288, 212316), (10062, 195984), (10888, 181116), (11232, 175569), (12249, 160992), (12384, 159237), (13416, 146988), (13932, 141544), (15093, 130656), (16332, 120744), (16848, 117046), (17693, 111456), (17888, 110241), (18576, 106158), (20124, 97992), (21776, 90558), (24498, 80496), (26832, 73494), (27864, 70772), (30186, 65328), (32664, 60372), (33696, 58523), (35386, 55728), (36747, 53664), (37152, 53079), (40248, 48996), (43552, 45279)]