28780545

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{44621}}^1$

素因数の和:44672

約数の個数: 16

約数和(自身を含む): 47120832

約数和(自身を除く): 18340287

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 44621, 133863, 223105, 669315, 1918703, 5756109, 9593515, 28780545]

約数ペア:

[(1, 28780545), (3, 9593515), (5, 5756109), (15, 1918703), (43, 669315), (129, 223105), (215, 133863), (645, 44621)]