20986752

素因数分解:

$2^7\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 60318720

約数和(自身を除く): 39331968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 41, 43, 48, 62, 64, 82, 86, 93, 96, 123, 124, 128, 129, 164, 172, 186, 192, 246, 248, 258, 328, 344, 372, 384, 492, 496, 516, 656, 688, 744, 984, 992, 1032, 1271, 1312, 1333, 1376, 1488, 1763, 1968, 1984, 2064, 2542, 2624, 2666, 2752, 2976, 3526, 3813, 3936, 3968, 3999, 4128, 5084, 5248, 5289, 5332, 5504, 5952, 7052, 7626, 7872, 7998, 8256, 10168, 10578, 10664, 11904, 14104, 15252, 15744, 15996, 16512, 20336, 21156, 21328, 28208, 30504, 31992, 40672, 42312, 42656, 54653, 56416, 61008, 63984, 81344, 84624, 85312, 109306, 112832, 122016, 127968, 162688, 163959, 169248, 170624, 218612, 225664, 244032, 255936, 327918, 338496, 437224, 488064, 511872, 655836, 676992, 874448, 1311672, 1748896, 2623344, 3497792, 5246688, 6995584, 10493376, 20986752]

約数ペア:

[(1, 20986752), (2, 10493376), (3, 6995584), (4, 5246688), (6, 3497792), (8, 2623344), (12, 1748896), (16, 1311672), (24, 874448), (31, 676992), (32, 655836), (41, 511872), (43, 488064), (48, 437224), (62, 338496), (64, 327918), (82, 255936), (86, 244032), (93, 225664), (96, 218612), (123, 170624), (124, 169248), (128, 163959), (129, 162688), (164, 127968), (172, 122016), (186, 112832), (192, 109306), (246, 85312), (248, 84624), (258, 81344), (328, 63984), (344, 61008), (372, 56416), (384, 54653), (492, 42656), (496, 42312), (516, 40672), (656, 31992), (688, 30504), (744, 28208), (984, 21328), (992, 21156), (1032, 20336), (1271, 16512), (1312, 15996), (1333, 15744), (1376, 15252), (1488, 14104), (1763, 11904), (1968, 10664), (1984, 10578), (2064, 10168), (2542, 8256), (2624, 7998), (2666, 7872), (2752, 7626), (2976, 7052), (3526, 5952), (3813, 5504), (3936, 5332), (3968, 5289), (3999, 5248), (4128, 5084)]