316257560

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{9749}}^1$

素因数の和:10571

約数の個数: 32

約数和(自身を含む): 712530000

約数和(自身を除く): 396272440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 6488, 8110, 9749, 16220, 19498, 32440, 38996, 48745, 77992, 97490, 194980, 389960, 7906439, 15812878, 31625756, 39532195, 63251512, 79064390, 158128780, 316257560]

約数ペア:

[(1, 316257560), (2, 158128780), (4, 79064390), (5, 63251512), (8, 39532195), (10, 31625756), (20, 15812878), (40, 7906439), (811, 389960), (1622, 194980), (3244, 97490), (4055, 77992), (6488, 48745), (8110, 38996), (9749, 32440), (16220, 19498)]