28388864

素因数分解:

$2^9\times 7^1\times {\mathrm{89}}^2$

素因数の和:203

約数の個数: 60

約数和(自身を含む): 65562024

約数和(自身を除く): 37173160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 178, 224, 256, 356, 448, 512, 623, 712, 896, 1246, 1424, 1792, 2492, 2848, 3584, 4984, 5696, 7921, 9968, 11392, 15842, 19936, 22784, 31684, 39872, 45568, 55447, 63368, 79744, 110894, 126736, 159488, 221788, 253472, 318976, 443576, 506944, 887152, 1013888, 1774304, 2027776, 3548608, 4055552, 7097216, 14194432, 28388864]

約数ペア:

[(1, 28388864), (2, 14194432), (4, 7097216), (7, 4055552), (8, 3548608), (14, 2027776), (16, 1774304), (28, 1013888), (32, 887152), (56, 506944), (64, 443576), (89, 318976), (112, 253472), (128, 221788), (178, 159488), (224, 126736), (256, 110894), (356, 79744), (448, 63368), (512, 55447), (623, 45568), (712, 39872), (896, 31684), (1246, 22784), (1424, 19936), (1792, 15842), (2492, 11392), (2848, 9968), (3584, 7921), (4984, 5696)]