280851520

素因数分解:

$2^6\times 5^1\times {\mathrm{877661}}^1$

素因数の和:877678

約数の個数: 28

約数和(自身を含む): 668778444

約数和(自身を除く): 387926924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 877661, 1755322, 3510644, 4388305, 7021288, 8776610, 14042576, 17553220, 28085152, 35106440, 56170304, 70212880, 140425760, 280851520]

約数ペア:

[(1, 280851520), (2, 140425760), (4, 70212880), (5, 56170304), (8, 35106440), (10, 28085152), (16, 17553220), (20, 14042576), (32, 8776610), (40, 7021288), (64, 4388305), (80, 3510644), (160, 1755322), (320, 877661)]