81902025

素因数分解:

$3^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2657}}^1$

素因数の和:2810

約数の個数: 36

約数和(自身を含む): 147822012

約数和(自身を除く): 65919987

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 137, 225, 411, 685, 1233, 2055, 2657, 3425, 6165, 7971, 10275, 13285, 23913, 30825, 39855, 66425, 119565, 199275, 364009, 597825, 1092027, 1820045, 3276081, 5460135, 9100225, 16380405, 27300675, 81902025]

約数ペア:

[(1, 81902025), (3, 27300675), (5, 16380405), (9, 9100225), (15, 5460135), (25, 3276081), (45, 1820045), (75, 1092027), (137, 597825), (225, 364009), (411, 199275), (685, 119565), (1233, 66425), (2055, 39855), (2657, 30825), (3425, 23913), (6165, 13285), (7971, 10275)]