164016280

素因数分解:

$2^3\times 5^1\times {\mathrm{4100407}}^1$

素因数の和:4100418

約数の個数: 16

約数和(自身を含む): 369036720

約数和(自身を除く): 205020440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4100407, 8200814, 16401628, 20502035, 32803256, 41004070, 82008140, 164016280]

約数ペア:

[(1, 164016280), (2, 82008140), (4, 41004070), (5, 32803256), (8, 20502035), (10, 16401628), (20, 8200814), (40, 4100407)]