31781268

素因数分解:

$2^2\times 3^3\times {\mathrm{103}}^1\times {\mathrm{2857}}^1$

素因数の和:2973

約数の個数: 48

約数和(自身を含む): 83224960

約数和(自身を除く): 51443692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 103, 108, 206, 309, 412, 618, 927, 1236, 1854, 2781, 2857, 3708, 5562, 5714, 8571, 11124, 11428, 17142, 25713, 34284, 51426, 77139, 102852, 154278, 294271, 308556, 588542, 882813, 1177084, 1765626, 2648439, 3531252, 5296878, 7945317, 10593756, 15890634, 31781268]

約数ペア:

[(1, 31781268), (2, 15890634), (3, 10593756), (4, 7945317), (6, 5296878), (9, 3531252), (12, 2648439), (18, 1765626), (27, 1177084), (36, 882813), (54, 588542), (103, 308556), (108, 294271), (206, 154278), (309, 102852), (412, 77139), (618, 51426), (927, 34284), (1236, 25713), (1854, 17142), (2781, 11428), (2857, 11124), (3708, 8571), (5562, 5714)]