1991411968

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1171}}^1$

素因数の和:1280

約数の個数: 144

約数和(自身を含む): 4963616896

約数和(自身を除く): 2972204928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 73, 91, 104, 112, 128, 146, 182, 208, 224, 256, 292, 364, 416, 448, 511, 584, 728, 832, 896, 949, 1022, 1168, 1171, 1456, 1664, 1792, 1898, 2044, 2336, 2342, 2912, 3328, 3796, 4088, 4672, 4684, 5824, 6643, 7592, 8176, 8197, 9344, 9368, 11648, 13286, 15184, 15223, 16352, 16394, 18688, 18736, 23296, 26572, 30368, 30446, 32704, 32788, 37472, 53144, 60736, 60892, 65408, 65576, 74944, 85483, 106288, 106561, 121472, 121784, 130816, 131152, 149888, 170966, 212576, 213122, 242944, 243568, 262304, 299776, 341932, 425152, 426244, 487136, 524608, 598381, 683864, 850304, 852488, 974272, 1049216, 1111279, 1196762, 1367728, 1700608, 1704976, 1948544, 2098432, 2222558, 2393524, 2735456, 3409952, 3897088, 4445116, 4787048, 5470912, 6819904, 7778953, 8890232, 9574096, 10941824, 13639808, 15557906, 17780464, 19148192, 21883648, 27279616, 31115812, 35560928, 38296384, 62231624, 71121856, 76592768, 124463248, 142243712, 153185536, 248926496, 284487424, 497852992, 995705984, 1991411968]

約数ペア:

[(1, 1991411968), (2, 995705984), (4, 497852992), (7, 284487424), (8, 248926496), (13, 153185536), (14, 142243712), (16, 124463248), (26, 76592768), (28, 71121856), (32, 62231624), (52, 38296384), (56, 35560928), (64, 31115812), (73, 27279616), (91, 21883648), (104, 19148192), (112, 17780464), (128, 15557906), (146, 13639808), (182, 10941824), (208, 9574096), (224, 8890232), (256, 7778953), (292, 6819904), (364, 5470912), (416, 4787048), (448, 4445116), (511, 3897088), (584, 3409952), (728, 2735456), (832, 2393524), (896, 2222558), (949, 2098432), (1022, 1948544), (1168, 1704976), (1171, 1700608), (1456, 1367728), (1664, 1196762), (1792, 1111279), (1898, 1049216), (2044, 974272), (2336, 852488), (2342, 850304), (2912, 683864), (3328, 598381), (3796, 524608), (4088, 487136), (4672, 426244), (4684, 425152), (5824, 341932), (6643, 299776), (7592, 262304), (8176, 243568), (8197, 242944), (9344, 213122), (9368, 212576), (11648, 170966), (13286, 149888), (15184, 131152), (15223, 130816), (16352, 121784), (16394, 121472), (18688, 106561), (18736, 106288), (23296, 85483), (26572, 74944), (30368, 65576), (30446, 65408), (32704, 60892), (32788, 60736), (37472, 53144)]