64497875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2089}}^1$

素因数の和:2136

約数の個数: 32

約数和(自身を含む): 91291200

約数和(自身を除く): 26793325

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 1235, 1625, 2089, 2375, 6175, 10445, 27157, 30875, 39691, 52225, 135785, 198455, 261125, 515983, 678925, 992275, 2579915, 3394625, 4961375, 12899575, 64497875]

約数ペア:

[(1, 64497875), (5, 12899575), (13, 4961375), (19, 3394625), (25, 2579915), (65, 992275), (95, 678925), (125, 515983), (247, 261125), (325, 198455), (475, 135785), (1235, 52225), (1625, 39691), (2089, 30875), (2375, 27157), (6175, 10445)]