320453840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{572239}}^1$

素因数の和:572259

約数の個数: 40

約数和(自身を含む): 851493120

約数和(自身を除く): 531039280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 572239, 1144478, 2288956, 2861195, 4005673, 4577912, 5722390, 8011346, 9155824, 11444780, 16022692, 20028365, 22889560, 32045384, 40056730, 45779120, 64090768, 80113460, 160226920, 320453840]

約数ペア:

[(1, 320453840), (2, 160226920), (4, 80113460), (5, 64090768), (7, 45779120), (8, 40056730), (10, 32045384), (14, 22889560), (16, 20028365), (20, 16022692), (28, 11444780), (35, 9155824), (40, 8011346), (56, 5722390), (70, 4577912), (80, 4005673), (112, 2861195), (140, 2288956), (280, 1144478), (560, 572239)]