87209575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1307}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 115318512

約数和(自身を除く): 28108937

約数列:

[1, 5, 17, 25, 85, 157, 425, 785, 1307, 2669, 3925, 6535, 13345, 22219, 32675, 66725, 111095, 205199, 555475, 1025995, 3488383, 5129975, 17441915, 87209575]

約数ペア:

[(1, 87209575), (5, 17441915), (17, 5129975), (25, 3488383), (85, 1025995), (157, 555475), (425, 205199), (785, 111095), (1307, 66725), (2669, 32675), (3925, 22219), (6535, 13345)]