19764416

素因数分解:

$2^6\times 7^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 56

約数和(自身を含む): 45268896

約数和(自身を除く): 25504480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 157, 224, 281, 314, 448, 562, 628, 1099, 1124, 1256, 1967, 2198, 2248, 2512, 3934, 4396, 4496, 5024, 7868, 8792, 8992, 10048, 15736, 17584, 17984, 31472, 35168, 44117, 62944, 70336, 88234, 125888, 176468, 308819, 352936, 617638, 705872, 1235276, 1411744, 2470552, 2823488, 4941104, 9882208, 19764416]

約数ペア:

[(1, 19764416), (2, 9882208), (4, 4941104), (7, 2823488), (8, 2470552), (14, 1411744), (16, 1235276), (28, 705872), (32, 617638), (56, 352936), (64, 308819), (112, 176468), (157, 125888), (224, 88234), (281, 70336), (314, 62944), (448, 44117), (562, 35168), (628, 31472), (1099, 17984), (1124, 17584), (1256, 15736), (1967, 10048), (2198, 8992), (2248, 8792), (2512, 7868), (3934, 5024), (4396, 4496)]