87730139

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:688

約数の個数: 20

約数和(自身を含む): 104197200

約数和(自身を除く): 16467061

約数列:

[1, 7, 49, 61, 343, 427, 599, 2401, 2989, 4193, 20923, 29351, 36539, 146461, 205457, 255773, 1438199, 1790411, 12532877, 87730139]

約数ペア:

[(1, 87730139), (7, 12532877), (49, 1790411), (61, 1438199), (343, 255773), (427, 205457), (599, 146461), (2401, 36539), (2989, 29351), (4193, 20923)]