28120455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{56809}}^1$

素因数の和:56831

約数の個数: 24

約数和(自身を含む): 53174160

約数和(自身を除く): 25053705

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 56809, 170427, 284045, 511281, 624899, 852135, 1874697, 2556405, 3124495, 5624091, 9373485, 28120455]

約数ペア:

[(1, 28120455), (3, 9373485), (5, 5624091), (9, 3124495), (11, 2556405), (15, 1874697), (33, 852135), (45, 624899), (55, 511281), (99, 284045), (165, 170427), (495, 56809)]