1320220765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{86771}}^1$

素因数の和:86972

約数の個数: 16

約数和(自身を含む): 1686847680

約数和(自身を除く): 366626915

約数列:

[1, 5, 17, 85, 179, 895, 3043, 15215, 86771, 433855, 1475107, 7375535, 15532009, 77660045, 264044153, 1320220765]

約数ペア:

[(1, 1320220765), (5, 264044153), (17, 77660045), (85, 15532009), (179, 7375535), (895, 1475107), (3043, 433855), (15215, 86771)]