164920960

素因数分解:

$2^7\times 5^1\times {\mathrm{257689}}^1$

素因数の和:257708

約数の個数: 32

約数和(自身を含む): 394265700

約数和(自身を除く): 229344740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 257689, 515378, 1030756, 1288445, 2061512, 2576890, 4123024, 5153780, 8246048, 10307560, 16492096, 20615120, 32984192, 41230240, 82460480, 164920960]

約数ペア:

[(1, 164920960), (2, 82460480), (4, 41230240), (5, 32984192), (8, 20615120), (10, 16492096), (16, 10307560), (20, 8246048), (32, 5153780), (40, 4123024), (64, 2576890), (80, 2061512), (128, 1288445), (160, 1030756), (320, 515378), (640, 257689)]