80861775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{63421}}^1$

素因数の和:63451

約数の個数: 24

約数和(自身を含む): 141557904

約数和(自身を除く): 60696129

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 63421, 190263, 317105, 951315, 1078157, 1585525, 3234471, 4756575, 5390785, 16172355, 26953925, 80861775]

約数ペア:

[(1, 80861775), (3, 26953925), (5, 16172355), (15, 5390785), (17, 4756575), (25, 3234471), (51, 1585525), (75, 1078157), (85, 951315), (255, 317105), (425, 190263), (1275, 63421)]