81415544

素因数分解:

$2^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{5657}}^1$

素因数の和:5927

約数の個数: 32

約数和(自身を含む): 175171680

約数和(自身を除く): 93756136

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 257, 514, 1028, 1799, 2056, 3598, 5657, 7196, 11314, 14392, 22628, 39599, 45256, 79198, 158396, 316792, 1453849, 2907698, 5815396, 10176943, 11630792, 20353886, 40707772, 81415544]

約数ペア:

[(1, 81415544), (2, 40707772), (4, 20353886), (7, 11630792), (8, 10176943), (14, 5815396), (28, 2907698), (56, 1453849), (257, 316792), (514, 158396), (1028, 79198), (1799, 45256), (2056, 39599), (3598, 22628), (5657, 14392), (7196, 11314)]