20280575

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{401}}^1$

素因数の和:452

約数の個数: 36

約数和(自身を含む): 30606672

約数和(自身を除く): 10326097

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 289, 401, 425, 595, 1445, 2005, 2023, 2807, 2975, 6817, 7225, 10025, 10115, 14035, 34085, 47719, 50575, 70175, 115889, 170425, 238595, 579445, 811223, 1192975, 2897225, 4056115, 20280575]

約数ペア:

[(1, 20280575), (5, 4056115), (7, 2897225), (17, 1192975), (25, 811223), (35, 579445), (85, 238595), (119, 170425), (175, 115889), (289, 70175), (401, 50575), (425, 47719), (595, 34085), (1445, 14035), (2005, 10115), (2023, 10025), (2807, 7225), (2975, 6817)]