129609280

素因数分解:

$2^6\times 5^1\times {\mathrm{405029}}^1$

素因数の和:405046

約数の個数: 28

約数和(自身を含む): 308632860

約数和(自身を除く): 179023580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 405029, 810058, 1620116, 2025145, 3240232, 4050290, 6480464, 8100580, 12960928, 16201160, 25921856, 32402320, 64804640, 129609280]

約数ペア:

[(1, 129609280), (2, 64804640), (4, 32402320), (5, 25921856), (8, 16201160), (10, 12960928), (16, 8100580), (20, 6480464), (32, 4050290), (40, 3240232), (64, 2025145), (80, 1620116), (160, 810058), (320, 405029)]