1280335965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1985017}}^1$

素因数の和:1985068

約数の個数: 16

約数和(自身を含む): 2096179008

約数和(自身を除く): 815843043

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1985017, 5955051, 9925085, 29775255, 85355731, 256067193, 426778655, 1280335965]

約数ペア:

[(1, 1280335965), (3, 426778655), (5, 256067193), (15, 85355731), (43, 29775255), (129, 9925085), (215, 5955051), (645, 1985017)]