81750025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{27479}}^1$

素因数の和:27513

約数の個数: 24

約数和(自身を含む): 122670720

約数和(自身を除く): 40920695

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 27479, 137395, 192353, 467143, 686975, 961765, 2335715, 3270001, 4808825, 11678575, 16350005, 81750025]

約数ペア:

[(1, 81750025), (5, 16350005), (7, 11678575), (17, 4808825), (25, 3270001), (35, 2335715), (85, 961765), (119, 686975), (175, 467143), (425, 192353), (595, 137395), (2975, 27479)]