861660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{4787}}^1$

素因数の和:4802

約数の個数: 36

約数和(自身を含む): 2614248

約数和(自身を除く): 1752588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 4787, 9574, 14361, 19148, 23935, 28722, 43083, 47870, 57444, 71805, 86166, 95740, 143610, 172332, 215415, 287220, 430830, 861660]

約数ペア:

[(1, 861660), (2, 430830), (3, 287220), (4, 215415), (5, 172332), (6, 143610), (9, 95740), (10, 86166), (12, 71805), (15, 57444), (18, 47870), (20, 43083), (30, 28722), (36, 23935), (45, 19148), (60, 14361), (90, 9574), (180, 4787)]