28256165

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 11971675

約数列:

[1, 5, 7, 35, 47, 89, 193, 235, 329, 445, 623, 965, 1351, 1645, 3115, 4183, 6755, 9071, 17177, 20915, 29281, 45355, 63497, 85885, 120239, 146405, 317485, 601195, 807319, 4036595, 5651233, 28256165]

約数ペア:

[(1, 28256165), (5, 5651233), (7, 4036595), (35, 807319), (47, 601195), (89, 317485), (193, 146405), (235, 120239), (329, 85885), (445, 63497), (623, 45355), (965, 29281), (1351, 20915), (1645, 17177), (3115, 9071), (4183, 6755)]