20576475

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:964

約数の個数: 36

約数和(自身を含む): 37237200

約数和(自身を除く): 16660725

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 839, 981, 1635, 2517, 2725, 4195, 4905, 7551, 8175, 12585, 20975, 24525, 37755, 62925, 91451, 188775, 274353, 457255, 823059, 1371765, 2286275, 4115295, 6858825, 20576475]

約数ペア:

[(1, 20576475), (3, 6858825), (5, 4115295), (9, 2286275), (15, 1371765), (25, 823059), (45, 457255), (75, 274353), (109, 188775), (225, 91451), (327, 62925), (545, 37755), (839, 24525), (981, 20975), (1635, 12585), (2517, 8175), (2725, 7551), (4195, 4905)]