128515025

素因数分解:

$5^2\times {\mathrm{107}}^2\times {\mathrm{449}}^1$

素因数の和:673

約数の個数: 18

約数和(自身を含む): 161220150

約数和(自身を除く): 32705125

約数列:

[1, 5, 25, 107, 449, 535, 2245, 2675, 11225, 11449, 48043, 57245, 240215, 286225, 1201075, 5140601, 25703005, 128515025]

約数ペア:

[(1, 128515025), (5, 25703005), (25, 5140601), (107, 1201075), (449, 286225), (535, 240215), (2245, 57245), (2675, 48043), (11225, 11449)]