28640395

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9859}}^1$

素因数の和:9954

約数の個数: 16

約数和(自身を含む): 39755520

約数和(自身を除く): 11115125

約数列:

[1, 5, 7, 35, 83, 415, 581, 2905, 9859, 49295, 69013, 345065, 818297, 4091485, 5728079, 28640395]

約数ペア:

[(1, 28640395), (5, 5728079), (7, 4091485), (35, 818297), (83, 345065), (415, 69013), (581, 49295), (2905, 9859)]