20254976

素因数分解:

$2^8\times 7^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 26838784

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, 623, 712, 889, 896, 1016, 1246, 1424, 1778, 1792, 2032, 2492, 2848, 3556, 4064, 4984, 5696, 7112, 8128, 9968, 11303, 11392, 14224, 16256, 19936, 22606, 22784, 28448, 32512, 39872, 45212, 56896, 79121, 79744, 90424, 113792, 158242, 159488, 180848, 227584, 316484, 361696, 632968, 723392, 1265936, 1446784, 2531872, 2893568, 5063744, 10127488, 20254976]

約数ペア:

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