243157025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 36

約数和(自身を含む): 323221500

約数和(自身を除く): 80064475

約数列:

[1, 5, 25, 29, 31, 145, 155, 349, 725, 775, 899, 961, 1745, 4495, 4805, 8725, 10121, 10819, 22475, 24025, 27869, 50605, 54095, 139345, 253025, 270475, 313751, 335389, 696725, 1568755, 1676945, 7843775, 8384725, 9726281, 48631405, 243157025]

約数ペア:

[(1, 243157025), (5, 48631405), (25, 9726281), (29, 8384725), (31, 7843775), (145, 1676945), (155, 1568755), (349, 696725), (725, 335389), (775, 313751), (899, 270475), (961, 253025), (1745, 139345), (4495, 54095), (4805, 50605), (8725, 27869), (10121, 24025), (10819, 22475)]