80393715

素因数分解:

$3^4\times 5^1\times {\mathrm{198503}}^1$

素因数の和:198520

約数の個数: 20

約数和(自身を含む): 144113904

約数和(自身を除く): 63720189

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 198503, 595509, 992515, 1786527, 2977545, 5359581, 8932635, 16078743, 26797905, 80393715]

約数ペア:

[(1, 80393715), (3, 26797905), (5, 16078743), (9, 8932635), (15, 5359581), (27, 2977545), (45, 1786527), (81, 992515), (135, 595509), (405, 198503)]