87640155

素因数分解:

$3^2\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{1889}}^1$

素因数の和:2931

約数の個数: 24

約数和(自身を含む): 152137440

約数和(自身を除く): 64497285

約数列:

[1, 3, 5, 9, 15, 45, 1031, 1889, 3093, 5155, 5667, 9279, 9445, 15465, 17001, 28335, 46395, 85005, 1947559, 5842677, 9737795, 17528031, 29213385, 87640155]

約数ペア:

[(1, 87640155), (3, 29213385), (5, 17528031), (9, 9737795), (15, 5842677), (45, 1947559), (1031, 85005), (1889, 46395), (3093, 28335), (5155, 17001), (5667, 15465), (9279, 9445)]