28425775

素因数分解:

$5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 40632320

約数和(自身を除く): 12206545

約数列:

[1, 5, 7, 25, 35, 127, 175, 635, 889, 1279, 3175, 4445, 6395, 8953, 22225, 31975, 44765, 162433, 223825, 812165, 1137031, 4060825, 5685155, 28425775]

約数ペア:

[(1, 28425775), (5, 5685155), (7, 4060825), (25, 1137031), (35, 812165), (127, 223825), (175, 162433), (635, 44765), (889, 31975), (1279, 22225), (3175, 8953), (4445, 6395)]