642399145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{175759}}^1$

素因数の和:175824

約数の個数: 16

約数和(自身を含む): 835211520

約数和(自身を除く): 192812375

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 175759, 878795, 2987903, 7557637, 14939515, 37788185, 128479829, 642399145]

約数ペア:

[(1, 642399145), (5, 128479829), (17, 37788185), (43, 14939515), (85, 7557637), (215, 2987903), (731, 878795), (3655, 175759)]