28279275

素因数分解:

$3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{1787}}^1$

素因数の和:2011

約数の個数: 24

約数和(自身を含む): 47002944

約数和(自身を除く): 18723669

約数列:

[1, 3, 5, 15, 25, 75, 211, 633, 1055, 1787, 3165, 5275, 5361, 8935, 15825, 26805, 44675, 134025, 377057, 1131171, 1885285, 5655855, 9426425, 28279275]

約数ペア:

[(1, 28279275), (3, 9426425), (5, 5655855), (15, 1885285), (25, 1131171), (75, 377057), (211, 134025), (633, 44675), (1055, 26805), (1787, 15825), (3165, 8935), (5275, 5361)]