319770080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{40787}}^1$

素因数の和:40816

約数の個数: 72

約数和(自身を含む): 878818248

約数和(自身を除く): 559048168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 40787, 81574, 163148, 203935, 285509, 326296, 407870, 571018, 652592, 815740, 1142036, 1305184, 1427545, 1631480, 1998563, 2284072, 2855090, 3262960, 3997126, 4568144, 5710180, 6525920, 7994252, 9136288, 9992815, 11420360, 15988504, 19985630, 22840720, 31977008, 39971260, 45681440, 63954016, 79942520, 159885040, 319770080]

約数ペア:

[(1, 319770080), (2, 159885040), (4, 79942520), (5, 63954016), (7, 45681440), (8, 39971260), (10, 31977008), (14, 22840720), (16, 19985630), (20, 15988504), (28, 11420360), (32, 9992815), (35, 9136288), (40, 7994252), (49, 6525920), (56, 5710180), (70, 4568144), (80, 3997126), (98, 3262960), (112, 2855090), (140, 2284072), (160, 1998563), (196, 1631480), (224, 1427545), (245, 1305184), (280, 1142036), (392, 815740), (490, 652592), (560, 571018), (784, 407870), (980, 326296), (1120, 285509), (1568, 203935), (1960, 163148), (3920, 81574), (7840, 40787)]