80531975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9973}}^1$

素因数の和:10019

約数の個数: 24

約数和(自身を含む): 111309840

約数和(自身を除く): 30777865

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 8075, 9973, 49865, 169541, 189487, 249325, 847705, 947435, 3221279, 4238525, 4737175, 16106395, 80531975]

約数ペア:

[(1, 80531975), (5, 16106395), (17, 4737175), (19, 4238525), (25, 3221279), (85, 947435), (95, 847705), (323, 249325), (425, 189487), (475, 169541), (1615, 49865), (8075, 9973)]