81019904

素因数分解:

$2^{10}\times 7^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 88

約数和(自身を含む): 188651520

約数和(自身を除く): 107631616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 127, 128, 178, 224, 254, 256, 356, 448, 508, 512, 623, 712, 889, 896, 1016, 1024, 1246, 1424, 1778, 1792, 2032, 2492, 2848, 3556, 3584, 4064, 4984, 5696, 7112, 7168, 8128, 9968, 11303, 11392, 14224, 16256, 19936, 22606, 22784, 28448, 32512, 39872, 45212, 45568, 56896, 65024, 79121, 79744, 90424, 91136, 113792, 130048, 158242, 159488, 180848, 227584, 316484, 318976, 361696, 455168, 632968, 637952, 723392, 910336, 1265936, 1446784, 2531872, 2893568, 5063744, 5787136, 10127488, 11574272, 20254976, 40509952, 81019904]

約数ペア:

[(1, 81019904), (2, 40509952), (4, 20254976), (7, 11574272), (8, 10127488), (14, 5787136), (16, 5063744), (28, 2893568), (32, 2531872), (56, 1446784), (64, 1265936), (89, 910336), (112, 723392), (127, 637952), (128, 632968), (178, 455168), (224, 361696), (254, 318976), (256, 316484), (356, 227584), (448, 180848), (508, 159488), (512, 158242), (623, 130048), (712, 113792), (889, 91136), (896, 90424), (1016, 79744), (1024, 79121), (1246, 65024), (1424, 56896), (1778, 45568), (1792, 45212), (2032, 39872), (2492, 32512), (2848, 28448), (3556, 22784), (3584, 22606), (4064, 19936), (4984, 16256), (5696, 14224), (7112, 11392), (7168, 11303), (8128, 9968)]