131355280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{4787}}^1$

素因数の和:4821

約数の個数: 80

約数和(自身を含む): 356227200

約数和(自身を除く): 224871920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 4787, 5488, 6860, 9574, 13720, 19148, 23935, 27440, 33509, 38296, 47870, 67018, 76592, 95740, 134036, 167545, 191480, 234563, 268072, 335090, 382960, 469126, 536144, 670180, 938252, 1172815, 1340360, 1641941, 1876504, 2345630, 2680720, 3283882, 3753008, 4691260, 6567764, 8209705, 9382520, 13135528, 16419410, 18765040, 26271056, 32838820, 65677640, 131355280]

約数ペア:

[(1, 131355280), (2, 65677640), (4, 32838820), (5, 26271056), (7, 18765040), (8, 16419410), (10, 13135528), (14, 9382520), (16, 8209705), (20, 6567764), (28, 4691260), (35, 3753008), (40, 3283882), (49, 2680720), (56, 2345630), (70, 1876504), (80, 1641941), (98, 1340360), (112, 1172815), (140, 938252), (196, 670180), (245, 536144), (280, 469126), (343, 382960), (392, 335090), (490, 268072), (560, 234563), (686, 191480), (784, 167545), (980, 134036), (1372, 95740), (1715, 76592), (1960, 67018), (2744, 47870), (3430, 38296), (3920, 33509), (4787, 27440), (5488, 23935), (6860, 19148), (9574, 13720)]