990860975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{7603}}^1$

素因数の和:8027

約数の個数: 24

約数和(自身を含む): 1326654672

約数和(自身を除く): 335793697

約数列:

[1, 5, 13, 25, 65, 325, 401, 2005, 5213, 7603, 10025, 26065, 38015, 98839, 130325, 190075, 494195, 2470975, 3048803, 15244015, 39634439, 76220075, 198172195, 990860975]

約数ペア:

[(1, 990860975), (5, 198172195), (13, 76220075), (25, 39634439), (65, 15244015), (325, 3048803), (401, 2470975), (2005, 494195), (5213, 190075), (7603, 130325), (10025, 98839), (26065, 38015)]