1288761759

素因数分解:

$3^4\times {\mathrm{251}}^1\times {\mathrm{63389}}^1$

素因数の和:63652

約数の個数: 20

約数和(自身を含む): 1932887880

約数和(自身を除く): 644126121

約数列:

[1, 3, 9, 27, 81, 251, 753, 2259, 6777, 20331, 63389, 190167, 570501, 1711503, 5134509, 15910639, 47731917, 143195751, 429587253, 1288761759]

約数ペア:

[(1, 1288761759), (3, 429587253), (9, 143195751), (27, 47731917), (81, 15910639), (251, 5134509), (753, 1711503), (2259, 570501), (6777, 190167), (20331, 63389)]