28200025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9479}}^1$

素因数の和:9513

約数の個数: 24

約数和(自身を含む): 42318720

約数和(自身を除く): 14118695

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 9479, 47395, 66353, 161143, 236975, 331765, 805715, 1128001, 1658825, 4028575, 5640005, 28200025]

約数ペア:

[(1, 28200025), (5, 5640005), (7, 4028575), (17, 1658825), (25, 1128001), (35, 805715), (85, 331765), (119, 236975), (175, 161143), (425, 66353), (595, 47395), (2975, 9479)]