682807880

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{523}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 1557411840

約数和(自身を除く): 874603960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 257, 508, 514, 523, 635, 1016, 1028, 1046, 1270, 1285, 2056, 2092, 2540, 2570, 2615, 4184, 5080, 5140, 5230, 10280, 10460, 20920, 32639, 65278, 66421, 130556, 132842, 134411, 163195, 261112, 265684, 268822, 326390, 332105, 531368, 537644, 652780, 664210, 672055, 1075288, 1305560, 1328420, 1344110, 2656840, 2688220, 5376440, 17070197, 34140394, 68280788, 85350985, 136561576, 170701970, 341403940, 682807880]

約数ペア:

[(1, 682807880), (2, 341403940), (4, 170701970), (5, 136561576), (8, 85350985), (10, 68280788), (20, 34140394), (40, 17070197), (127, 5376440), (254, 2688220), (257, 2656840), (508, 1344110), (514, 1328420), (523, 1305560), (635, 1075288), (1016, 672055), (1028, 664210), (1046, 652780), (1270, 537644), (1285, 531368), (2056, 332105), (2092, 326390), (2540, 268822), (2570, 265684), (2615, 261112), (4184, 163195), (5080, 134411), (5140, 132842), (5230, 130556), (10280, 66421), (10460, 65278), (20920, 32639)]