20028555

素因数分解:

$3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2459}}^1$

素因数の和:2651

約数の個数: 24

約数和(自身を含む): 34922160

約数和(自身を除く): 14893605

約数列:

[1, 3, 5, 9, 15, 45, 181, 543, 905, 1629, 2459, 2715, 7377, 8145, 12295, 22131, 36885, 110655, 445079, 1335237, 2225395, 4005711, 6676185, 20028555]

約数ペア:

[(1, 20028555), (3, 6676185), (5, 4005711), (9, 2225395), (15, 1335237), (45, 445079), (181, 110655), (543, 36885), (905, 22131), (1629, 12295), (2459, 8145), (2715, 7377)]