28491732

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^2\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 54

約数和(自身を含む): 73514714

約数和(自身を除く): 45022982

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 157, 213, 284, 314, 426, 471, 628, 639, 852, 942, 1278, 1413, 1884, 2556, 2826, 5041, 5652, 10082, 11147, 15123, 20164, 22294, 30246, 33441, 44588, 45369, 60492, 66882, 90738, 100323, 133764, 181476, 200646, 401292, 791437, 1582874, 2374311, 3165748, 4748622, 7122933, 9497244, 14245866, 28491732]

約数ペア:

[(1, 28491732), (2, 14245866), (3, 9497244), (4, 7122933), (6, 4748622), (9, 3165748), (12, 2374311), (18, 1582874), (36, 791437), (71, 401292), (142, 200646), (157, 181476), (213, 133764), (284, 100323), (314, 90738), (426, 66882), (471, 60492), (628, 45369), (639, 44588), (852, 33441), (942, 30246), (1278, 22294), (1413, 20164), (1884, 15123), (2556, 11147), (2826, 10082), (5041, 5652)]