1991398112

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{883}}^1$

素因数の和:1096

約数の個数: 96

約数和(自身を含む): 4410806400

約数和(自身を除く): 2419408288

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 149, 172, 176, 298, 344, 352, 473, 596, 688, 883, 946, 1192, 1376, 1639, 1766, 1892, 2384, 3278, 3532, 3784, 4768, 6407, 6556, 7064, 7568, 9713, 12814, 13112, 14128, 15136, 19426, 25628, 26224, 28256, 37969, 38852, 51256, 52448, 70477, 75938, 77704, 102512, 131567, 140954, 151876, 155408, 205024, 263134, 281908, 303752, 310816, 417659, 526268, 563816, 607504, 835318, 1052536, 1127632, 1215008, 1447237, 1670636, 2105072, 2255264, 2894474, 3341272, 4210144, 5657381, 5788948, 6682544, 11314762, 11577896, 13365088, 22629524, 23155792, 45259048, 46311584, 62231191, 90518096, 124462382, 181036192, 248924764, 497849528, 995699056, 1991398112]

約数ペア:

[(1, 1991398112), (2, 995699056), (4, 497849528), (8, 248924764), (11, 181036192), (16, 124462382), (22, 90518096), (32, 62231191), (43, 46311584), (44, 45259048), (86, 23155792), (88, 22629524), (149, 13365088), (172, 11577896), (176, 11314762), (298, 6682544), (344, 5788948), (352, 5657381), (473, 4210144), (596, 3341272), (688, 2894474), (883, 2255264), (946, 2105072), (1192, 1670636), (1376, 1447237), (1639, 1215008), (1766, 1127632), (1892, 1052536), (2384, 835318), (3278, 607504), (3532, 563816), (3784, 526268), (4768, 417659), (6407, 310816), (6556, 303752), (7064, 281908), (7568, 263134), (9713, 205024), (12814, 155408), (13112, 151876), (14128, 140954), (15136, 131567), (19426, 102512), (25628, 77704), (26224, 75938), (28256, 70477), (37969, 52448), (38852, 51256)]