87278715

素因数分解:

$3^4\times 5^1\times {\mathrm{215503}}^1$

素因数の和:215520

約数の個数: 20

約数和(自身を含む): 156455904

約数和(自身を除く): 69177189

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 215503, 646509, 1077515, 1939527, 3232545, 5818581, 9697635, 17455743, 29092905, 87278715]

約数ペア:

[(1, 87278715), (3, 29092905), (5, 17455743), (9, 9697635), (15, 5818581), (27, 3232545), (45, 1939527), (81, 1077515), (135, 646509), (405, 215503)]