8416280

素因数分解:

$2^3\times 5^1\times {\mathrm{210407}}^1$

素因数の和:210418

約数の個数: 16

約数和(自身を含む): 18936720

約数和(自身を除く): 10520440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 210407, 420814, 841628, 1052035, 1683256, 2104070, 4208140, 8416280]

約数ペア:

[(1, 8416280), (2, 4208140), (4, 2104070), (5, 1683256), (8, 1052035), (10, 841628), (20, 420814), (40, 210407)]