280076120

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{10133}}^1$

素因数の和:10835

約数の個数: 32

約数和(自身を含む): 631145520

約数和(自身を除く): 351069400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 10133, 13820, 20266, 27640, 40532, 50665, 81064, 101330, 202660, 405320, 7001903, 14003806, 28007612, 35009515, 56015224, 70019030, 140038060, 280076120]

約数ペア:

[(1, 280076120), (2, 140038060), (4, 70019030), (5, 56015224), (8, 35009515), (10, 28007612), (20, 14003806), (40, 7001903), (691, 405320), (1382, 202660), (2764, 101330), (3455, 81064), (5528, 50665), (6910, 40532), (10133, 27640), (13820, 20266)]