31991008

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:336

約数の個数: 96

約数和(自身を含む): 78962688

約数和(自身を除く): 46971680

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 32, 34, 56, 62, 68, 112, 119, 124, 136, 217, 224, 238, 248, 271, 272, 434, 476, 496, 527, 542, 544, 868, 952, 992, 1054, 1084, 1736, 1897, 1904, 2108, 2168, 3472, 3689, 3794, 3808, 4216, 4336, 4607, 6944, 7378, 7588, 8401, 8432, 8672, 9214, 14756, 15176, 16802, 16864, 18428, 29512, 30352, 32249, 33604, 36856, 58807, 59024, 60704, 64498, 67208, 73712, 117614, 118048, 128996, 134416, 142817, 147424, 235228, 257992, 268832, 285634, 470456, 515984, 571268, 940912, 999719, 1031968, 1142536, 1881824, 1999438, 2285072, 3998876, 4570144, 7997752, 15995504, 31991008]

約数ペア:

[(1, 31991008), (2, 15995504), (4, 7997752), (7, 4570144), (8, 3998876), (14, 2285072), (16, 1999438), (17, 1881824), (28, 1142536), (31, 1031968), (32, 999719), (34, 940912), (56, 571268), (62, 515984), (68, 470456), (112, 285634), (119, 268832), (124, 257992), (136, 235228), (217, 147424), (224, 142817), (238, 134416), (248, 128996), (271, 118048), (272, 117614), (434, 73712), (476, 67208), (496, 64498), (527, 60704), (542, 59024), (544, 58807), (868, 36856), (952, 33604), (992, 32249), (1054, 30352), (1084, 29512), (1736, 18428), (1897, 16864), (1904, 16802), (2108, 15176), (2168, 14756), (3472, 9214), (3689, 8672), (3794, 8432), (3808, 8401), (4216, 7588), (4336, 7378), (4607, 6944)]