15171025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^2$

素因数の和:130

約数の個数: 27

約数和(自身を含む): 20350353

約数和(自身を除く): 5179328

約数列:

[1, 5, 19, 25, 41, 95, 205, 361, 475, 779, 1025, 1681, 1805, 3895, 8405, 9025, 14801, 19475, 31939, 42025, 74005, 159695, 370025, 606841, 798475, 3034205, 15171025]

約数ペア:

[(1, 15171025), (5, 3034205), (19, 798475), (25, 606841), (41, 370025), (95, 159695), (205, 74005), (361, 42025), (475, 31939), (779, 19475), (1025, 14801), (1681, 9025), (1805, 8405)]